A student crosses a pure-breeding line of red-flowered poinsettias with a pure-breeding line of white-flowered poinsettias. The student observes that all the plants in the F1 generation have pink flowers. The student then crosses the F1 plants with one another and records 64 red-flowered plants, 107 pink-flowered plants and 53 white-flowered plants. What is the inheritance pattern for flower color in these poinsettias
Answer:
The correct answer is - incomplete dominance.
Explanation:
The incomplete dominance is the pattern of inheritance where the recessive allele is not completely masked by the dominant allele in the heterozygous condition and makes a mixed or blend expression of both dominant and recessive traits.
In the given question, the pattern for the flower color is incomplete dominance as in the cross between the red and white flower poinsettias produce pink instead of red in F1 generation where the condition is heterozygous. The phenotypic ratio of in F2 generation in this type of inheritance is 1:2:1 which is approximately similar in this case 64:107:53.
Answer:
The calculated chi-square value is 1.53, and the null hypothesis cannot be rejected.
Explanation:
In polygenic inheritance, each of the genes controlling a trait will have exactly the same influence over the trait. Group of answer choices Yes since all genes having to do with a trait always have the exact same influence on a trait. No since different genes will exert varying degrees of influence on the trait None of the other responses are satisfactory answers. No since all traits are only controlled by one gene with two alleles.
Answer:
No, since different genes will exert varying degrees of influence on the trait
Explanation:
The term quantitative heritability refers to the transmission of a phenotypic trait in which expression depends on the additive effect of a series of genes.
Polygenic heritability occurs when a trait results from the interaction of more than one gene. And these genes can also have more than two alleles. The action of many genes and alleles can cause many different combinations that are the reason for genotypic graduation.
Quantitative traits are those that can be measure, such as longitude, weight, eggs laid per female, among others. These characters do not group individuals by any precise and clear categories. Instead, they group individuals in many different categories that depend on how the genes were intercrossed and distributed during meiosis. The result depends on the magnitude in which each allele contributes to the final phenotype and genotype. When they interact, they create a gradation in phenotypes, according to the level of contribution.
Let us see, for instance, the eye color trait, which results from the interaction of many genes. Two of them significantly contribute to the color green, blue, or brown, while the rest of the involved genes play a role in defining the spectrum of phenotypes of each eye color. So, there are different tones of blue eyes, green eyes, and brown eyes, and the differences are determined by the contribution of each allele to the phenotype.
Look at the apparatus shown. It can be used to compare the amount of __________ given out by different fuels. What one word completes this sentence?
It can be used to compare the amount of energy given out by different fuels.
Thermometer is that apparatus which is used to measure the temperature of the liquid or solution. Temperature is a measure of the kinetic energy of the molecules that is present in a substance. When we record the temperature of something, we are collect information about how fast the molecules are moving in the liquid by heating the solution.
In this experiment, thermometer is dipped into the solution in order to record the amount of energy given out by burning of different fuels so we can conclude that the apparatus is used to measure the amount of energy given out by burning of different fuels.
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What is the smallest size category of soil (less than 0.002 mm in diameter)?
O A. Silt
B. Sand
C. Clay
D. Gravel
Answer:
Clay particles
Explanation:
The particles that make up soil are categorized into three groups by size – sand, silt, and clay. Sand particles are the largest and clay particles the smallest.
Hope this helps!
calculate the quantity of electrical energy used by an electrical bulb rated 60 Walt's used for 2hours
Answer:
0.12KWH
Explanation:
Time: 2hrs
Power: 60watt
60/1000
Formula: Energy=potential/time
0.06×2= 0.12KWH
Standard deviation refers to the __________. A. statistics used to organize, summarize, and describe sample data B. value within a given set of data in its original form C. average distance between variable scores and the mean in a set of data D. difference between the largest and smallest variable scores in a set of data Please select the best answer from the choices provided A B C D
Answer:
C. average distance between variable scores and the mean in a set of data
Explanation:
The standard deviation is used to find how far data points are from the mean. This can be used to create a bell curve, which represents what percentile data points are relative to the set. A bell curve shows how the data points are distributed. Standard deviation can be found from an entire data set or just a sample.
How does homologous relate to evolution?
Answer:
Homologous or homologous structure shares a recent common ancestor.
Explanation:
And because of that homologous helps providing the evidence for evolution, how animals or living things bones or structure look similar to each other.
For a particular trait, the allele F is dominant over the allele f. The Punnett square below shows the genetic cross of two parents, each with the genotype Ff.
Which box in this Punnett square would contain two dominant alleles?
( THIS IS SCIENCE WORK ) HELP ASAP PLS I NEED HELP NO LINKS PLS
Explain in your own words the order in which the creature's traits may have evolved, starting
from the first likely trait. (Hint: Which trait is most common across the creatures?)
Answer:
Use the following key to help you complete the field study.
HINT: You can view the creatures by clicking on the link HERE. You may also use the activity on Page 5 of the lesson in order to view them.
Step
Physical Feature
Classification
1
Smooth skin
Go to 2
Fur
Go to 3
2
One eye
Go to 4
Two eyes
Go to 5
3
One eye
Go to 7
Two eyes
Go to 8
4
Arms and legs
Silkus monowrestle
Legs only
Silkus monosquirmus
5
Arms and legs
Go to 6
Legs only
Silkus duosquirmus
6
Tail
Silkus tallyhas
No tail
Silkus stretchilus
7
Tail
Fuzzus tallywag
No tail
Fuzzus feelzalot
8
Two teeth
Go to 9
More than two teeth
Fuzzus chompilus
9
Pointy
Fuzzus pointilus
Square
Fuzzus squarilus
this is the lesson
An estuary collects sediments from the ocean and rivers that feed into it. The sediments swirl around and then settle to form a mudflat. Eel grass is then established on the mudflat. The ecosystem changes over time and ultimately develops into a salt marsh that contains mangrove trees.
Which of the following is likely NOT involved in this example of ecological succession?
A)
The rotting remains of plants add to the fertility of the soil.
B)
The soil becomes so fertile that eel grass is replaced by other plant species.
C)
The roots from plants help stabilize the sediment, keeping it in place.
D)
The concentration of salt becomes so high that all plant life is destroyed.
Can y'all included detail answers on why the other answers are incorrect
of the uterus.
The start of pregnancy occurs when the blastocyst embeds in the
-lcorpus luteum
-endometrium
-fimbriae
-follicle
Which of the following statements correctly describes the relationship between erosion and deposition?
A.
Erosion breaks rocks into pieces, and deposition moves the pieces.
B.
Deposition and erosion both involve the movement of small pieces of rock from one place to another.
C.
Erosion is the movement of small pieces of rock from one place to another, and deposition is when the rock settles in a new location.
D.
Deposition and erosion break rocks into smaller pieces, but the rocks remain in place.
Answer:
I think It's A
Explanation:
I hope I helped :)
A plasmid contains a multiple cloning site inside the coding region of the lacZgene and also contains an ampicillin resistance gene at a separate locus. When cells are transformed with a successfully recombinant plasmid containing a piece of DNA cloned into the multiple cloning site, what color will the colonies be when grown on an agar plate containing ampicillin and X-gal
Answer:
The correct option is white.
Explanation:
As the options are not given, the options are found online and are as follows;
(a.) green (b.) white (c.) colonies will not grow (d.) blue (e.) clear
Out of this, white is the true option because in recombinant plasmid lac Z gene is disturbed and cannot produce beta galactosidase enzyme and there is no hydrolysis of x gal and no blue so recombinant plasmid gives white colonies)
3.Some plants have structures or features that protect them from harm.
If a plant has bitter-tasting leaves, what would this most likely protect the plant against?Lector inmersivo
(1 Punto)
caterpillars that would eat the plant
cold weather that would cause the plant to freeze
people who would pick the plant for its pretty flowers
hot weather that would cause the leaves to dry up
Answer:
Caterpillars that would eat the plant
Explanation:
A Rectal Enema is used to treat
Constipation. This would represent
what type of drug delivery?
Select one:
O a. Enteral and systemic
O b. Parenteral and local
O c. Enteral and local
O d. Parenteral and systemic
Answer:
The correct answer is - C. Enteral and local.
Explanation:
3. What charge does the hydrogen atoms have in a molecule of water?
Answer: Opposite charges attract one another. The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.
Answer:
Negative
Very small charge in water.
how does a wave change direction when it bounces off a surface?
Which of the following is an example of genomic imprinting in humans? Which of the following is an example of genomic imprinting in humans? A random pattern of autosomal allele inactivation is observed. In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed. The maternal and paternal alleles of a gene pair are both expressed. Human males have only one Y-chromosome and one X-chromosome. One of the two X-chromosomes in females is randomly expressed and the other is repressed.
Answer:
In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed.
Explanation:
Genomic imprinting is an epigenetic phenomenon where alleles are differentially expressed depending on their parental origin (for example, paternally expressed when it is inherited from the father). Genomic imprinting is controlled by epigenetic modifications (for example, DNA methylation, histone acetylation, etc) which works together to preferentially activate the expression of the allele inherited from one parent and simultaneously silence or “imprint” the expression of the allele inherited from the other parent. In humans, an example of genomic imprinting is the case of the insulin-like growth factor 2 (Igf2) gene, which is maternally imprinted (repressed), thereby this gene is only expressed from the paternal allele.
Is it true that if one part of the brain is damaged all body functions will be affected
Answer:Sometimes only a single area is affected, but in most cases of TBI multiple areas have been injured. When all areas of the brain are affected, the injury can be very severe.
so yes
Explanation:
Answer:
In some cases
Explanation:
In some cases hiting specific parts of the body can restrict or damage all body functions, but those cases are rare. It is more likely that if a part of the brain is damage only a few specific function are affected.
Brainliest?
Which of the following processes can help dalry farmers generate a substantial amount of methane from the manure
from their herds?
A. fermentation
B. krebs cycle
C. aerobic respiration
D. glycolysis
Define Haploid
Define Diploid
What is the number of chromosomes for diploid human cells?
What is the number of chromosomes for haploid pea plant cells?
Answer:
Define Haploid
1 set of chromosomes.
Define Diploid
2 sets of chromosomes.
What is the number of chromosomes for diploid human cells?
46
What is the number of chromosomes for haploid pea plant cells?
7
-TheUnknownScientist
Explanation:
number of chromosomes for diploid human cells is 46.
number of chromosomes for haploid pea plant cells is 7
Floating sea ice is melting causing polar bears to swim further distances while hunting. A polar bears primary food source are ___________.
Answer:
Seals
Explanation:
Complete the statement about genetic variation.
Meiosis contributes to genetic variability when
the chromosomes line up randomly during
metaphase 1 anaphase I prophase I. This
random line-up means that when the cell divides,
the number of chromosomes in each cell is the
same, but the contents are not. This process is
called | independent assortment |gene linkage |
crossing over|. During meiosis, |gene linkage|
|independent assortment | crossing over | increases
genetic variation because it shuffles portions of
chromosomes around.
Answer:
1. Metaphase 1
2. Independent assortment
3. Crossing over
Explanation:
Meiosis is a kind of cell division that reduces the chromosome number of the parent cell by half. It only occurs during sexual reproduction and ensures genetic variation in sexually reproducing organisms.
Meiosis contributes to genetic variability when the chromosomes line up randomly at the cell plate during METAPHASE 1 of meiosis. This process of random alignment is called INDEPENDENT ASSORTMENT of genes. Generally, meiosis is able to ensure genetic variability due to a process called CROSSING OVER. Crossing over is a process whereby nonsister chromatids of homologous chromosomes exchanges/shuffles genetic contents.
Where would you expect to find humans with the darkest skin color in the Northern Hemisphere (from 10°N to 60°N)?
Answer: Australia
Explanation:
please help no links or i will report
Answer and Explanation:
The difference between a food chain and a food web:
Food Chain
- Only one possible direct line of energy going through organisms
- Consists of usually 4-6 organisms
Food Web
- Multiple links that branch off in a web-like form, with some organisms being interconnected with each other.
The answer is the third option: A food chain represents one possible pathway that energy and matter can take in an ecosystem. A food web contains multiple, interconnected food chains and describes how energy and matter moves through an entire ecosystem.
#teamtrees #PAW (Plant And Water)
A template strand of DNA in a gene reads:
TCT CCA AGC 5
Using the codon chart below, what is the sequence of amino acids that is produced after translation?
(Choice A
Ser - Gly - Gly
(Choice B)
B
Ser - Gly - Leu
(Choice C)
C
Arg - Ser - Gly
(Choice D)
D
Arg - Gly- Ser
Answer:
(Choice D)
Arg - Gly - Ser
State and discuss two types of immunity.
Answer:
How Does the Immune System Work?
Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection. ...
Adaptive immunity: Adaptive (or active) immunity develops throughout our lives. ...
Passive immunity: Passive immunity is "borrowed" from another source and it lasts for a short time.
what should be the daily routine labor requirements in the farm plot? Cite at least 5 daily labor requirements?
Answer:
Explanation:
Labor requirements are the tasks carry out in farms for effective production and these include;
1. Watering...the farmer or worker is expected to water the plants so that they will absorb water for effective growth..
2. Fertilization application for improve yield
3. Weeding to reduce competition for nutrients, space and water with crops.
4. Prunning
5. Harvesting of matured crops.
6 . Transporting of harvested crops.
5 daily requirements in a farm plot are:
Watering of plantsWeedingFertilizinguse of pesticidesTransportationWhat is a farm plot?This is an area of land that is used for agricultural purposes. A farm plot usually has one or more crops planted on the soil.
The farmers has to water the crops daily to ensure that the crops grow well. He also has to weed to reduce competition for the crops.
Using fertilizers helps to improve the yields and pesticides drives unwanted insects from the crops.
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The predicted values for the four phenotypes form a ratio. The simulated values match this predicted ratio.
Answer:
9:3:3:1 ; approximately
Explanation:
Just did it
What bacteria structures can make bacteria RESISTANT TO ANTIBIOTICS. CHOOSE ALL THAT APPLY.
Flagella
Cell wall
Outer membrane
Endospore
Plasmid
Capsule