Mendel knew that the parents' alleles segregated randomly when forming gametes and traits are passed independently of one another.
What is dihybrid cross?Dihybrid cross is a genetic cross for two traits ( like color and shape of the seed). The main purpose of the dihybrid cross that was performed by Mendel was to determine relationship between different pairs of alleles.
When he performed the dihybrid cross, he got the phenotypic ratio 9:3:3:1 corresponding to nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds.
Therefore, Mendel knew that the parents' alleles segregated randomly when forming gametes and traits are passed independently of one another.
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what are normal values for healthy blood pressure
Answer:
Normal blood pressure is typically defined as a systolic reading of less than 120 mmHg and a diastolic reading of less than 80 mmHg.
Explanation:
Make a list of the 10 highest mountains and name what type of mountain they are
Explanation:
Currently, There are at least 108 mountains on Earth with elevations of 7,200 metres (23,622 ft) or greater above sea level. The vast majority of these mountains are located on the edge of the Indian and Eurasian plates in China, India, Nepal and Pakistan.A drawback of a prominence-based list is that it may exclude well-known or spectacular mountains that are connected via a high ridge to a taller summit, such as Eiger, Nuptse or Annapurna IV.
As an extreme example, Ulugh Muztagh on the north Tibetan Plateau is often listed as 7,723 m (25,338 ft) to 7,754 m (25,440 ft), but appears to be only 6,973 m (22,877 ft) to 6,987 m (22,923 ft). Some mountains differ by > 100 m (330 ft) on different maps, while even very thorough current measurements of Mount Everest range from 8,840 m (29,003 ft) to 8,850 m (29,035 ft).
Which two phrases describe characteristics of a valid hypothesis?
A. Makes a claim that is testable
B. Must be proven true by scientific evidence
C. Is written in the form of a question
D. Answers a scientific question
A molecular biologist has isolated a short segment of DNA that she wants to replicate in vitro. First she heats the DNA, which separates the two strands, and then she adds _____. A nucleotides, primers, and polymerase -PCR requires a pool of nucleotide building blocks, primers to initiate DNA synthesis, and polymerase to continue elongation of the new strands.
A molecular biologist has isolated a short segment of DNA that she wants to replicate in vitro. First she heats the DNA, which separates the two strands, and then she adds nucleotides, primers, and polymerase
Cells duplicate their DNA in two identical copies through a process known as DNA replication. The DNA of the cell is copied into two completely new DNA molecules throughout this procedure. DNA polymerase is an enzyme that facilitates this process. At the replication fork, where the DNA is unraveled and each strand acts as a template for the creation of a new strand, DNA replication starts. A primer, which is a short strand of RNA to which additional nucleotides are added, is needed for the production of the new strands. In the 5'->3' direction, the new strand is created. While the addition of nucleotides in the lagging strand happens intermittently and moves in the opposite direction of the replication fork movement, the addition of nucleotides in the leading strand occurs continuously and in the replication fork movement's direction.To know more about DNA
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Fossils give evidence about organisms that lived a long time ago.
(a) Scientists have found very few fossils of the earliest site lowes
Give one reason why.
Answer:
Since life was not large back, like, you know, 3 billion years ago, there won't be many if any visible fossils since they didn't exist. According to the evolution of life, for many million years the earth was populated with only single celled organisms.
Explanation:
What limiting factor appears to determine the carrying capacity of kelp in a marine ecosystem that is based on this food chain? How can you tell?
The limiting factor is the number of species that is used as food for the Kelp population.
What is the limiting factor?We know that the limiting factor has to do with the factors that influence the availability of organisms in the ecosystem. We can now now realize that the carrying capacity is influenced by the number of the organisms in the ecosystem.
As such the carrying capacity is determined by the number of the organisms that are found. This is clear from the observation of the food chain that is in the marine ecosystem.
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explain how human activities contribute to the increase and decrease of carbon and impact global climate.
Answer:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.
the amount of carbon dioxide in the atmosphere is rapidly rising; it is already greater than at any time in the last 3.6 million years.
Using public transportation, carpooling, biking, and walking leads to fewer vehicles on the road and it also leads to less greenhouse gases in the atmosphere.
The vehicles you see on the road, air and water get power through fossil fuels. When they burn these, it releases a number of pollutants including carbon. This hampers the air and water quality and it also raises the temperature of the earth.
Explanation:
Classify these sequences based on their potential to modify protein products. The plain letters in the sequences represent protein coding regions, and the bold letters represent noncoding regions.
TACCTTAATT → TACCTTAATTATT
GAGACCGT → GAGACCAGT
TACCTTAATT → TACCTTAATT this is the based on their potential to modify protein products. The plain letters in the sequences represent protein coding regions, and the bold letters represent noncoding regions.
We can see that the first and second sequences for this item are exact duplicates of one another. With this knowledge, we may thus presume that the protein has not been altered.
What is Coding regions ?The section of a gene's DNA or RNA that codes for protein is referred to as the coding area of a gene, also known as the coding sequence.
The section of a gene's DNA or RNA that codes for proteins is referred to as the coding region of a gene, often known as the coding sequence (CDS).
A gene's coding region, which is made up of all of its exons, is the portion of the gene that will ultimately be transcribed and translated into protein. Introns, or areas that are removed during RNA splicing and discarded, are interspersed throughout the remaining portion of the gene.We can see that the first and second sequences are exact duplicates of one another. With this knowledge, we may thus presume that the protein has not been altered.I'm not sure if the region that was lost in the second sequence (ATT) is a noncoding region.Yo know more about Coding regions please click here : https://brainly.com/question/11355655
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Which of the following statements are true regarding types of stem cells
I. Totipotent stem cells can only become tissues of the body
II. Multipotent stem cells are found in adults and stay dormant until needed
III. Meristematic stem cells are only found in plants
IV. Pluripotent stem cells can become tissues of the body and the placenta
A. II, III, and IV
B. II and III
C. II and IV
Answer:
Explanation:
A
multipotent (able to give rise to multiple cells within a lineage), pluripotent (able to give rise to all cell types in an adult) and totipotent (able to give rise to all embryonic and adult lineages
The psychosocial approach focuses on the biological and environmental elements of a person to help
improve his or her relationships, both personal and interpersonal. Some of the therapeutic approaches or
theories related to the psychosocial approach include group analysis, family counseling, socio-ecological
theories, and
substance abuse treatment.
free association
crisis interventions
participant observation
The psychosocial approach focuses on a person's biological and environmental components to assist them have better personal and interpersonal connections.
What is a psychosocial approach?The relationship between intrapersonal psychological factors and external factors is a component of a psychosocial approach to human behaviour. The conventional definition of psychosocial features is the psychological growth of a person in connection to his or her social and cultural surroundings.Psychosocial theories focus on the pattern changes in ego development that occur throughout a person's life, including self-understanding, identity formation, social interactions, and worldview. The psychosocial theories contend that continual interactions between people and their social settings are what lead to development.Societies are set up to direct personal development toward a specific ideal of full adulthood through their structures, rules, roles, rituals, and consequences. When a society tries to strike a balance between the demands of the individual and the requirements of the group, however, issues inevitably arise.To learn more about Psychosocial theories refer :
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The pedigree below tracks a genetic abnormality through five generations of a family tree. The trait, polydactyly, is characterized by extra fingers (left), toes, or both. The pedigree shows the number of fingers on each hand in black; toes on each foot, in red. male female unknown gender marriage/mating individual with the trait being studied I, II, III, IV... generation offspring Standard symbols used in pedigrees. 1 II *Gene not expressed in this carrier. III IV V (a) Using the pedigree, describe the genotypes of the parents for the trait polydactyly in generation I. (b) (6) Explain how humans are able to produce gametes that are haploid. (c) According to the pedigree, explain the inheritance pattern of the genetic abnormality polydactyly.
Pedigree charts are used to trace the passing out of traits(characteristics) through generations.
In the given pedigree of 5 generations, the pattern of inheritance of genetic abnormality of polydactyly(extra fingers in hands and toes) is studied . The types of pattern of inheritance in traits over generations.
(a) Genotype of the parents for the trait Polydactyly in generation 1
Since each parent provide one allele of each trait to the offspring there are dominant and recessive genes on the basis of the expression of the character or trait. The genotype of the parents for thre trait of polydactyly in generation 1 is Recessive. Because both the parents do not have the abnormality and their offspring shows(expresses) the trait.
(b) In humans there are 46 chromosomes arranged as 23 sets of 2 chromosomes in a cell which is described as (2n). These somatic cells undergo Mitotic division to produce 2 identical daughter cell with 2n chromosomes and they are called diploid cells. When Meiosis takes place one cell is divide into 4 Haploid cells with 23 chromosomes each, ie, the single set of chromosomes represented by n. These Haploid cells are the gamates which transfer the genetic information from parents to offspring. The gamates are 2 types the sperm and egg cells , both are haploid and during fertilization a sperm cell fuses with eggcell to form a zygote with 2n (46) chromosomes.
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explain how the following processes are impacted by the insulin/glucagon system glucose transport all tissues g
When blood sugar is too low the pancreas releases glucagon. Glucagon directs the liver to release stored glucose increasing blood sugar levels in the body.
Like a lock on a lock, insulin binds to cell surface receptors and directs GLUT4 molecules to the cell surface. As the name suggests, glucose transport proteins act as vehicles for the uptake of glucose into cells. The two hormones counterbalance each other to stabilize blood glucose.
Insulin inhibits gluconeogenesis and glycogenolysis stimulates glycolysis and gluconeogenesis and transfers amino acids Stimulates uptake and uptake inhibits proteolysis stimulates lipogenesis and inhibits lipolysis. Glucagon keeps blood sugar from getting too low while insulin is produced to keep blood sugar from getting too high.
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Determine an approximate interval width for a random sample of 110 observations that fall between and include: A. 20 to 85 B. 30 to 190 C. 40 to 230 D. 140 to 500.
It is defined as the difference between the upper-class limit and the lower class limit. Class Interval = Upper-Class limit – Lower class limit.
What is an approximate interval?If you know the exact distribution of the test statistic, and use that distribution's quantiles to make confidence intervals, that interval is exact. If you approximate the distribution of the test statistic, then the interval is approximate.The Empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated belowThe Empirical Rule states that, for a normally distributed random variable:68% of the measures are within 1 standard deviation of the mean.95% of the measures are within 2 standard deviation of the mean.99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
68% of data falls within the first standard deviation from the mean.95% fall within two standard deviations.99.7% fall within three standard deviations.From the information given, the mean is $150 and the standard deviation is $20.2 standard deviations = 2 × 20 = 40
150 - 40 = $110
150 + 40 = 190
Therefore, about 95% of the monthly food expenditures are between $110 and $190
Mean = 150
Standard deviation = 20
95% of the monthly food expenditures are between what two amounts:By the Empirical Rule, within 2 standard deviations of the mean150 - 2*20 = $110
150 + 2*20 = $190
$110 and $190
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Pick out the sentences that correctly describe marine mammals. There can be more than one.
Marine mammals are endothermic, or warm-blooded. Species such as whales breathe air though their gills. They have a thick layer of blubber that helps maintain buoyancy. They can stay underwater indefinitely. Dolphins are a type of toothed whale. Baleen whales feed on large fish and sometimes seals.
Ganis and coworkers (2004) used FMRI to measure brain activation for perception and imagery of objects. their results showed that ___
Genis and coworkers general has the used of FMRI to measure the imagery object because of image captured.
An fMRI experiment is a unique sort of MRI that suggests how distinctive elements of your mind are working. They assist docs degree blood glide withinside the mind while not having to do surgery. fMRI imaging is a safe, non-invasive manner to diagnose situations and to discover if positive remedies are working.
The belief and imagery spark off the equal regions of the frontal lobe, however belief turns on greater of the lower back of the mind than imagery does.
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6. In which one of the following situations would you observe signs of fermentation first? a. a flask with dried yeast only in a warm room (20 °C) b. a flask with dried yeast and water in a warm room (20 °C) c. a flask with dried yeast, water and sugar in a refrigerator (4 °C) d. a flask with dried yeast, water and sugar in a warm room (20 °C)
The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
What are the different capacities a bacteria will have?Bacteria with the capacity to utilize a variety of carbohydrate sources create lactic acid through the fermentation process. The primary bacteria utilised to create lactic acid are lactic acid bacteria, and among these, Lactobacillus spp. have demonstrated intriguing fermentation abilities.
Lactic acid fermentation was a consequence of a deficiency in oxygen inside the muscle cells. This is because oxygen is required by the cell as a terminal electron acceptor in order to make ATP.
Therefore, The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
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If one ounce is approximately equal to 28 grams, then one pound is approximately equal to
a. 250 grams
b. 350 grams
c. 450 grams
d. 550 grams
e. 650 grams
One pound will be approximately equal to = Option c) 450 grams
An ounce is considered the value for calculating mass in the imperial method of measurement
The value of one ounce is approximately equal to = 28.3495 grams
Same as in the case of pounds,
1 pound = 16 ounces
As we have seen that the value of an ounce is approximately 28 grams so calculating one pound in grams
= 16 x 28.3495
= 453.592 grams
= approximately 450 grams
Therefore, one pound is approximately equal to = 450grams
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What would happen to a population
that doesn't adapt to a changing
environmental condition?
A. They would reproduce more.
B. They would all become more similar.
C. They would die off. This is the answer
D. They would mate with other species.
Answer:
.C
Explanation:
What is most likely to happen if an environment changes quickly and a population in that environment does not have variations that are helpful in the new conditions? – If the environment changes so much that the adaptations of a species are no longer enough for the species to survive, extinction will occur
Where is the nucleus usually located in a eukaryotic
Answer:
at the heart
Explanation:
hope this helps ya
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The bonds that are cleaved for the transfer of the genetic information is bon Z.
What is the DNA?The term DNA is the acronym that stands for deoxy ribonucleic acid. This is the molecule that holds the genetic information of the living things. We know that the genetic information of the living things is held in the chromosomes and the genes are the specific location where they are found. Yet the genes in themselves are composed of the DNA molecule and it is this molecule that helps in the copying of genetic information.
We know that during cell division, there is the copy of genetic information from the parent cells to the daughter cells and this is achieved by the cleavage of some of the bonds that can be found in the DNA molecule as these are responsible for the transfer of the said genetic information.
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if the economy is initially at long-run equilibrium and aggregate demand declines, then in the short run inflation
In the short run inflation and output are lower than in the original long-run equilibrium.
If an economy is stated to be in lengthy-run equilibrium, then real GDP is at its ability output, the actual unemployment rate will same the herbal rate of unemployment (approximately 6%), and the actual fee degree will identical the anticipated fee level.
Population growth increases the deliver of exertions, investments will increase the supply of capital, and upgrades in era boom the effectiveness of each labor and capital. So, it's miles herbal for the lengthy-run combination supply to growth with economic increase.
If inflation increases (decreases), significant bank will growth (decrease) interest quotes. This can dampen (growth) combination demand.
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Please Help ASAP(100 Points And Brainleist)
Answer:
INPUTS: glucose,oxygen.
OUTPUTS: carbon dioxide,water,ATP
erm about the four processes- i don't know bout that one but i hope these ones help!!!
, what advantages does a coelom provide the earthworm and the salamander?
A coelom is a fluid-filled body cavity that is found in many animals, including earthworms and salamanders. It provides several advantages to these animals, including:
The coelom provides a flexible and supportive structure for the organs and tissues of the body. This allows the earthworm and salamander to move and change shape easily, which is important for their locomotion and for carrying out other activities such as eating and reproduction.
The coelom acts as a hydrostatic skeleton, providing support and stability for the body without the need for hard, rigid structures like bones. This allows the earthworm and salamander to be flexible and agile, which is important for their survival in their environments.
The coelom provides a space for the organs and tissues to move and function freely. This allows the earthworm and salamander to perform a wide range of physiological processes, such as digestion, circulation, and respiration.
The coelom provides a space for the storage of nutrients and waste products. This allows the earthworm and salamander to maintain a balanced and healthy internal environment, which is essential for their survival.
Overall, the coelom provides several important advantages to the earthworm and salamander, allowing them to move, grow, and function effectively in their environments.
Which phrase correctly describes a chromosome?
folded proteins
segments of DNA
tightly wound DNA
fragments of proteins
help! questions in photo below
Answer: A
Explanation: Mean or Average is to measure accuracy, but standard error of the mean will provide an accurate precision of an answer
In humans, free ear lobes are dominant to attached ear lobes. If a child has the heterozygous genotype for this trait, what phenotype will be expressed?
There are 30 players on each high school football team.Explain how you can find the total numbers of players if there are 40 teams.write and solve an equation.
There are 30 players on each high school football team, so, the total numbers of players are 1200 if there are 40 teams
What does a football team mean?It is usually understood that the term "football" (or "foot ball") refers to the motion of the foot kicking a ball. An alternate interpretation is that football originally referred to a range of sports performed on foot in Medieval Europe.
A football team is a collection of players who have been chosen to play together in different football team sports.
In most circumstances, high school teams will include between 40 and 50 players. As players grow more specialized, playing solely offensive or only defense, a higher roster size is required.
Given that,
There are 30 players on each high school football team, if there are 40 teams, then total numbers of players, (30 × 40) = 1200 players.
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Which of the following equation correct represents the exponential population growth curve? A) dN/dt=rN; B) dN/dt= rN(K-N/K); C) Nt=N0et; D) both A and C
The correct equation is B) dN/dt= rN(K-N/K) as it correctly display the exponential population growth curve.
This is maximum usually proven in differential shape as: dN/dt = rN((K – N)/K), wherein dN/dt (e.g., the price of alternate in populace length, N, at a given second in time, t) is a feature of the modern length of the populace (N) and the intrinsic or on the spot price of alternate (r).
The components of exponential growth is dNdt=rNdNdt=rN wherein is the price of alternate in populace length, r is the biotic capability and N is the populace length. Exponential boom is represented with the aid of using the equation dN/dt = rN. In this equation, dN/dt is the boom price of the populace in a given instant, N= populace length, t is time, and r is the in line with capita price of increase, that is, how speedy the populace grows in line with man or woman already withinside the populace.
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what is the difference between an embryonic stem cell and a somatic stem cell
Unlike embryonic stem cells, which can differentiate into a wide variety of cells, somatic stem cells can only differentiate into a small number of cell types.
Somatic cells are diploid cells with two pairs of chromosomes, one from each parent, and are known as somatic cells. Somatic cells are any cells that are not germ cells (sperm and eggs), gametocytes (cells that divide into germ cells), or undifferentiated stem cells.
However, embryonic stem cells are fundamentally distinct from somatic cells since they can continue to differentiate into a variety of cell types. To have the ability to act as donor cells for tissue transplantation, these cells must maintain genetic stability.
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Question 1 of 10
What happens to the cells located in the apical meristem of a root as the root grows downward?
A. The cells specialize to produce long, hairlike roots.
B. The cells continue to divide and produce more unspecialized cells.
C. The cells die off and harden as they make contact with soil and rocks.
D. The cells form a barrier that protects older cells from diseases.
Even when the root cap is scraped off as the plant pushes through the soil, the apical meristem, which is shielded by it, continues to develop cells.
what is apical meristem ?
The undifferentiated (vague) meristems in a plant are called apical meristems. They are divided into three different categories of essential meristems. Thus, the two optional meristem types are produced by the essential meristems. Due of their connection to parallel growth, these alternative meristems are also known as sidelong meristems.
The plant's root tips, as well as the beginnings of emerging shoots and leaves, contain a tissue called apical meristematic tissue, which is responsible for plant development. The Apical Meristem is one of three varieties of meristems, or tissue that can divide into different cell types. The meristem is the tissue where growth occurs in plants. The term "apical growth" describes development at the top and bottom of a plant. The major plant body is produced by apical meristems, which are also in charge of root and shoot expansion.
Even when the root cap is scraped off as the plant pushes through the soil, the apical meristem, which is shielded by it, continues to develop cells.
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