The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
An organism with a dominant allele for a particular form of a trait only exhibits the trait sometimes. Please select the best answer from the choices provided T F
Answer:
False. An organism with a dominant allele for a particular form of a trait always exhibits that trait.
Explanation:
According to Mendelian genetics, a dominant allele for a given characteristic will always be expressed in the phenotype, regardless of whether its allelic formula is with both dominant alleles or heterozygous.
In the heterozygous form, the dominant allele is able to avoid the expression of the recessive allele, expressing the phenotype. The recessive allele will only be visible in the genotype when both alleles in the pair are recessive.
In non-Mendelian inheritance, however, there are cases where the dominant allele is expressed in conjunction with another allele, such as co-dominance. In intermediate inheritance different alleles —dominant and recessive— are combined and expressed as a combined characteristic.
write a 5 sentence paragraph that describes the characteristics that all living things share
Answer:
Living things are derived from single units and show several characteristics such as growth respiration, response to stimuli, homeostasis, evolution, and reproduction.
Explanation:
The natural world comprises several biotic or living and abiotic, non-living factors. Cells, are considered the smallest unit capable of supporting life. All living, or biotic factors must be able to grow, carry out respiration- a process that produces energy, and reproduce (pass on genes). They also show some level of organization or complexity, and respond to stimuli. Additionally, living organisms exhibit homeostasis or control over their internal environment and evolve or change over time to adapt to their external environments.
Examine a two-gene cross that follows simple Mendelian inheritance of freckles and eyebrow shape between a woman with genotype Mmpp and a man with genotype mmpp. How many phenotypes are possible in their offspring and in what ratio?
a. 4 phenotypes: 9:3:3:1
b. 2 phenotypes; 1:1
c. 3 phenotypes; 8:4:4
d. 3 phenotypes; 1:2:1
The number of possible phenotypes in the Mendelian cross would be 2 in the ratio 1:1.
Phenotypic ratiosFirst, let us look at the result of crossing the two genotypes Mmpp and mmpp.
Mmpp will give the gametes Mp, Mp, mp, and mp
mmpp will give the gametes mp, mp, mp, and mp
The two sets of gametes can thus be lined up on both axes of the Punnet's square as shown in the attached image.
Genotypes of the offspring: 8 Mmpp and 8 mmpp
Since the two genes follow a simple Mendelian inheritance pattern, the 2 genotypes automatically equate to 2 phenotypes in the ratio 1:1.
Hence, the correct option is b.
More on phenotypic ratios can be found here: https://brainly.com/question/3840678
Which are characteristics of all living things? Select three options.
grow and develop
make their own food
are made of many cells
respond to stimuli
can reproduce
Answer:
Grow and develop, respond to stimuli, and can reproduce
Explanation: The other random humans are wrong and I just did it on edge 2020
Answer:
The characteristics shared by all living things are that grow and develop, respond to stimuli and can reproduce.
Explanation:
Living things are different, and despite this, they have characteristics in common, since all are able to grow and develop, respond to external stimuli, and can reproduce themselves.
Growth and development: it is a process that occurs in stages and depends on the evolution of the form and functions of the organism.Response to stimuli: it is a function that is called relationship, through which an organism is able to perceive the stimuli of its environment and respond to them.Reproduction: this is the function in which other living beings with the same morphological and functional characteristics can be obtained from a living being.Making their own food and being made of many cells are characteristics that are not shared by all living things, since they correspond to autotrophic organisms and pluricellular organisms only, respectively.
Which of the following is not a salivary gland?
(a) Sublingual (b) Lachrymal (c) Subm
Answer:
b, lachrymal.
Explanation:
lachrymal is an eye gland.
Answer:
b, i think
Explanation:
Which sentence supports the statement that complex, multicellular organisms are made
up of specialized cells that each perform different functions for the body?
A. Human liver cells make proteins that promote homeostasis that neurons do not.
B. Different species of bacteria have different shapes and structures to their cells.
C. The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D. Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer: A. Human liver cells make proteins that promote homeostasis that neurons do not.
What is the genotype of a person with type A blood, who had a father with type O blood?
Question 5 options:
A: IAIB
B: IAIA
C: IAi
D: ii
Answer:
C
Explanation:
Father/mother must each donate a blood gene to the child. Father must have a genotype of ii because O blood is recessive. Thus, the kid must have one O type gene. However, the kid has A type blood overall, so the kid must have an A (dominant) gene as well. Thus, the answer is IAi.
Orlando shares with a friend that he does not like people who are homosexual, and that he goes out of his way at work to avoid helping customers who he suspects are gay. His friend says to him, "man, that isn't a cool way to be. You do realize that you're expressing a form of prejudice called ________, don't you?"
Answer:
homophobia
Explanation:
Some Lesbian/Gay/Bisexual/Binary/Transgender/Queer (LGBTQ) people experience discrimination for their sexual orientation and/or gender identity. Homophobia is a negative attitude or feeling towards people who are identified or perceived as part of the LGBTQ community. Homophobia is a psychic problem often associated with irrational fear and misunderstanding toward homosexuality. In general, homophobic people have ultraconservative religious beliefs.
What type of igneous rock is cooled and solidified above ground?
Intrusive
Extrusive
Laccolith
Batholith
Answer:
extrusive
Explanation:
Answer:
Extrusive
Explanation:
Igneous rocks are called extrusive when they cool and solidify above the surface. These rocks usually form from a volcano, so they are also called volcanic rocks
explain the variuous ways in which typical cell adapted to its functions
Which of the following explains how water is recycled on Earth? A. Ice gains heat, becomes liquid, and changes back to ice as it loses heat. B. Ice gains heat, becomes a liquid, gains more heat, and forms a gas (water vapor). C. Liquid water gains heat, evaporates into the air as water vapor, gathers into clouds, and then falls back to earth as a liquid as it loses heat. D. All of the above.
Answer:
B. Ice gains heat becomes liquid, gains more heat, and forms a gas.
Explanation:
1. due to the thick and viscous material in the asthenosphere the liquid is called ____.
Answer:
Viscoelastic
Explanation:
the answer is- Viscoelastic
Explanation:
Viscoelastic is the property of material that exhibit both viscous and elastic characteristics when undergoing deformation.
what happens to the rate of photosynthesis of a plant if we decreased the light intensity it receives?
Answer:
Required Answer:- A plant cannot photosynthesise very quickly without enough light.Eventhough There is plenty of Carbon dioxide,water and suitable temperature is available.When animals feed off of land faster than the plants can regrow, the land is _______.
a.
below its carrying capacity
b.
forested
c.
overgrazed
d.
depleted
Answer:
C. Overgrazed
This is because there were too many animals on the land to feed, when there are to many animals grazing the same piece of land, it is called overgrazing.
Explanation:
When animals feed off the land faster than the plants can regrow, the land is called "overgrazed." Overgrazing is harmful for an ecosystem. It is caused by cows, goats, etc.
What is overgrazing?Grass is consumed by animals such as cows and goats. Due to overgrazing, the ecosystem is harmed. Due to overgrazing, the plantation of an area is affected. The plants cannot regrow early because they have been fed by animals. Due to the low plantation, it affects the ecosystem's rainfall.
Less transpiration by plants is the result of less rainfall. Hence, less precipitation is seen. The overgrazing causes soil erosion. Generally, soil is held by the roots of the plants. As plants are not there, soil can be easily erased by floods and other natural calamities. The soil erosion caused the land to become sterile. The crops won't grow on sterile land. The infiltration capacity of the soil is reduced.
Hence, the correct answer is "overgrazed." Option C is the correct answer.
To learn more about the overgrazing, refer to the following link:
https://brainly.com/question/28916992
#SPJ6
I am arranged as a double helix, and my shape is often described as a “twisted ladder”
DNA ONLY
RNA ONLY
BOTH DNA AND RNA
Answer:
hi you wasted one of the answers i had for my question so im returning the favor :)
Explanation:
The diagram below represents a cell in a human body which statement concerning the structures within the cell is acurate
Answer:
I can help, but there's now picture of the diagram or any of the statements to choose from
Explanation:
if you put a diagram and the choice, I can answer it
Answer:
C)
Structure 3 is a mitochondrion, where respiration takes place.
Explanation:
Why do scientists use punnet squares
Answer:
The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
What could be a good effect of a mutation?
A. DNA is destroyed
B. Less variety in a population
C. More variety in a population,
D. DNA does not function properly.
ОО
Answer:
More variety in a population.
Explanation:
Answer: more variety in a population
Explanation:
please help! 15 pointss!!
3.Looking at the heat circulation in the ocean, what might happen to it if large amounts of cold water are added in the Polar Regions as glaciers melt?
4.Based on your response above, what effect could this have on the climate in your area?
Answer:
1. In the given question, if large amounts of water are supplemented in the Polar Regions as glaciers melt then the warm water will exhibit a more difficult time in flowing towards north.
2. The effect it could impart in the area is that the local temperature would increase more.
In the process of transcription, how does the mRNA strand relate to DNA?
a) The mRNA strand is complementary to the DNA strand; however, uracil instead of adenine is paired with thymine.
b) The mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
c) The mRNA strand mimics the DNA strand; however, uracil is the 5th based used in the sequence.
d) The mRNA strand is an exact copy of the DNA strand.
b) the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
In the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
TRANSCRIPTION:
Transcription is the first stage of gene expression which involves the synthesis of mRNA molecule from a DNA template. The double-stranded DNA molecule is separated and each single strand serves as a template for synthesizing a complementary mRNA strand. Adenine pairs Thymine while Guanine pairs with Cytosine in the DNA molecule but in the mRNA strand, uracil instead of thymine is paired with adenine. Therefore, in the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
Identify the inputs and outputs of the circulatory
system (please help!)
Answer:
The main input of cellular respiration is oxygen. The oxygen goes into the blood which then goes to the tissues. The main output is Carbon Dioxide. The carbon dioxide goes from the tissues, to the blood, and then to the lungs.
Explanation:
What are examples of negative feedback
Answer:
It depends on what the negitve stuff is.
Explanation:
Answer:
A thermostat switching on a heater when the temperature gets low.
A person starting to sweat to cool down during exercise.
Explanation:
Please help thank you
Answer:
A. Identify Alleles:
Allele one: Rr = Round seeded pea (phenotype)
Allele two: rr = Wrinkled seeded pea (phenotype)
B. Parent cross:
Rrxrr
Explanation:
Using the following vocab words, write them in order of smallest to largest level
of organization: tissues, cells, organs, organism
Answer:
Cells, Tissues, Organs, Organism
I hope this helps!
Answer:
cell, tissue, organ, organism.
Explanation:
What conclusion can you make about the skeletal structure of these two organisms? A. They share a common ancestor, but they’re different species. B. They’re the same species. C. They’re different species with no evolutionary relationship. D. The four-legged organism directly evolved from the two-legged organism.
Answer:
a
Explanation:
a
It's is A. They share a common ancestor, but they're a different species.
Which light produces the most glucose in the plant? (remember from the previous lesson that glucose is a food product (sugar) made during photosynthesis in a plant.) blue green yellow red
Answer:
The correct answer is - red light.
Explanation:
Plants absorbed white light best than any other light, however, red light is better light than other lights after the white light due to its long wavelength and the right amount of energy to excite or stimulate the electrons of the light center of the chlorophyll and transit to a higher energy level which increases the rate of photosynthesis.
Red light is a light with a longer wavelength which helps in radiate and heat the chlorophyll than its counterpart. A high rate of photosynthesis results in more glucose production.
Answer:
Red light
Explanation:
which statement provides the strongest evidence that birds evolved from dinosaurs
A. A fossilized nest of the herbivorous dinosaur Brachiosaurs shows that it laid eggs
B. Fossils of the beaked dinosaur Ankylosaurus show that it had modified scales that produced hard bony plates
C. A fossilized rib cage of the semi aquatic dinosaur Spinosaurus shows that it had lungs
D. Fossils of the winged dinosaur Archaeopteryx show that it had modified scales that produced feathers
Answer:
A is guess
Explanation
. A fossilized nest of the herbivorous dinosaur Brachiosaurs shows that it laid eggs
Answer:
D.
Explanation:
A. can be applied to most archosaurs, including the non dinosaur ones. No.
B. again can be applied to many archosaurs that aren't dinosaurs, such as crocodillians. No.
C. Nope, most terrestrial animals have lungs lol.
D. can be the only answer, the feathers on archaeopteryx aren't protofeathers like those found on other theropod dinosaurs, they're traditional feathers as those found on birds.
Answer: D
Which of the following leads to evolution?
Extinction
Natural selection
Global warming
migration
Answer:
just find the answer in this explainations
Explanation:
New traits can also come from transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Please label the water cycle part correctly I accidentally forgot how to do this so pls.
Answer:
1: Condensation 2: Precipitation 3: Evaporation
Explanation:
Hope this helps
the process of gradual and orderly change from one condition to another is called
Answer:
Evolution is a gradual change in inherited characters of organisms over a successive generation and thereby generating variations at each level of biological organization. Lamarkism explains evolution as an inheritance of acquired characters under influence of needs as posed as changing environmental conditions.
Explanation: