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Illusion [34]
3 years ago
5

What are three main sources of genetic variation in organisms?

Biology
1 answer:
Readme [11.4K]3 years ago
7 0
1- Mutation

2- Gene Flow

3- Sexual reproduction

Hope this helps :-)
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3 years ago
Which statement best describes a cause and its effect during the process or muscle contraction?​
Alisiya [41]

Answer. The most appropriate statement that is explaining the effect and cause during muscle contraction is. “The release of calcium ions causes myosin and actin to attach to each other.” The activation of muscles helps in the generation of muscles that send out the signals to the neurons.

hope this helps

7 0
2 years ago
Map pling Sickle-cell anemia is a disease that affects the type of hemoglobin (Hb) a person makes in his or her red blood cells.
topjm [15]

Answer:

The correct answer is codominance.

Explanation:

It is given in the question that the genotype of Martin is HbS/HbS, and is exhibiting sickle cell anemia with unusual hemoglobin. On the other hand, the genotype of Cindy is HbA/HbA, which shows that she possesses normal hemoglobin. Both of them have a child, Mary who as usual is exhibiting genotype HbS/HbA.  

This shows that Mary has acquired both the alleles for sickle cell anemia from her parents, and thus, is demonstrating both unusual and normal form of hemoglobin. Sickle cell is a condition that does not demonstrate the phenomenon of complete dominance, as it is a codominant trait.  

A phenomenon in which the features of both the alleles are expressed in the phenotype is termed as codominance. Hence, Mary is demonstrating a codominance pattern.  

6 0
3 years ago
Which Hormone is least active while ovulation is occurring?
Troyanec [42]

Answer:

B estrogen   (I think)

6 0
3 years ago
Read 2 more answers
Moraines are _____. organized and sorted by particle size unorganized deposits of rock and sediment deposited by the sediment fl
LiRa [457]

Answer: sediment deposited by the sediment flow of mass wasting are the slowest type of mass wasting

Mass wasting is the movement of large mass of rocks, boulders, slit, soil, sediments and ice down a slope. It occurs during retreating glaciers, landslides and mudflows. Moraine is a glacier deposit that develops during a retreating glacier. It develops when a glacier melts and it leaves sediments of ice, rocks  and others over an area. As, the glacier ice may melt slowly, it is a product of slowest type of mass wasting.

7 0
3 years ago
Read 2 more answers
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