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Tju [1.3M]
3 years ago
8

If two alleles influencing the expressed phenotype for a trait are equally expressed, this is an example of: a. polymorphism.b.

codominance.c.Mendelian inheritance.d. pleiotropy.
Biology
1 answer:
g100num [7]3 years ago
3 0

Answer:codominance

Explanation:codominance inheritance is when both alleles of a heterozygous gene pair have full phenotypic expression. A good example is the human blood group; people with ABO blood group type AB blood have one allele for A and one for B both expressed.

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The calcium and phosphorus balance should be kept at what ratio for swine?
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We determined that if phosphorus is provided at the required level of 0.33%, the optimal ratio of calcium to phosphorus is 1.39:1 or 1.25:1 to maximise daily gain and gain-to-feed, respectively. To optimise bone ash, which is important for breeding sows, the ratio is 1.66:1,”

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In a particular population the allele frequency of the ABO blood type alleles are as follows: r is 50%. IB is 49% and i is 1%. I
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26% is the percent of the population will have an A blood type (Option C)

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Due to technical problems, you will find the complete explanation in the attached files

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3 years ago
Please help ASAP! Describe at least one way in which each of Earth’s subsystems was altered during the Precambrian era.
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The Precambrian era envelopes the major bulk of the history of the Earth, beginning from the creation of the planet approx 4.5 billion years ago and terminating with the origination of composite, multicelled forms of life approximately 4 billion years after.

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At about three billion years ago, the atmosphere of the Earth was virtually devoid of oxygen. At approximately 2.4 billion years ago, oxygen was discharged from the seas as a waste product of photosynthesis by cyanobacteria. The levels of the gas slowly raised, attaining about 1 percent around two billion years ago.

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8 0
3 years ago
Read 2 more answers
Name one example of an enzyme in the human body and it's function.
Art [367]

Answer:

A couple of examples

<u>amylase</u>: break down starch into sugar.

<u>protease</u>: break down proteins into amino acids.

<u>lipase</u>: break down lipids (fats and oils) into fatty acids and glycerol.

3 0
3 years ago
There was a change in the environment between
olga nikolaevna [1]

These changes are likely genetic mutations

<h2>Further Explanation </h2>

Evolution is the process of change in all life forms from one generation to the next, and evolutionary biology studies how this evolution takes place. Every generation of organisms inherits traits owned by their parents through genes. <u><em>Changes (called mutations)</em></u> in this gene will produce new traits in the offspring of an organism. In an organism's population, some traits will become more common, while others will disappear. traits that help the survival and reproduction of organisms will be more likely to accumulate in a population than unfavorable traits. This process is called natural selection. The income of more offspring than the number of parents along with the inheritance of these traits is an additional fact about life that supports the scientific basis of natural selection. In a long time, this isolated population will become a new species.

Learn more

Genetic mutation brainly.com/question/793485

Evolution brainly.com/question/312738

Details

Class: Middle School

Subject: Biology

Keywords: Genetic mutation, evolution

4 0
3 years ago
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