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Ksenya-84 [330]
2 years ago
8

Why is heritable variation important for both artificial and natural selection.

Biology
1 answer:
Julli [10]2 years ago
7 0

Answer:

Heritability is important for natural and artificial selection because a trait must be heritable for them to take place. ... Variations that exist in every population are the basis for natural selection. The differences in organisms come from different genetic material.

Explanation:

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7. The diagram below represents a plant cell.
kirill [66]

Answer:

B

Explanation:

photosynthesis is represenyt as plant cell

6 0
3 years ago
Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homo
fomenos

Answer:

False

Explanation:

Gregor Mendel, who was referred to as the FATHER OF GENETICS, discovered the principles that governs heredity. One of those principles which he called LAW OF INDEPENDENT ASSORTMENT states that the alleles of a gene randomly segregates into gametes independently of the alleles of another gene. This means that during gamete formation (meiosis), the separation of the alleles of one gene doesn't affect the separation of the alleles of another gene.

Mendel discovered this principle when he worked with two genes that was responsible for two distinct characters. Hence, in a cell that contains two genes responsible for two different characters in the organism, independent assortment will always occur during gamete formation. Although, in an organism that is homozygous for both traits (AABB or aabb), only one type of allelic combination will be produced in the gamete. However, the alleles will still randomly align and separate independently of one another during Metaphase and Anaphase stages of meiosis.

4 0
3 years ago
Read 2 more answers
What are the 5 branches of arthropods? Draw the evolutionary cladogram.
dimaraw [331]
The five main characteristics are foot region, hard exoskeleton, bilateral symmetry, left and right limbs and a segmented body.
3 0
3 years ago
Proteins are one of the three macronutrients found in the diet and important structural molecule organisms. Proteins help provid
xxTIMURxx [149]

Answer:

The human body is able to synthesize them:  proteins, fats

Contains nitrogen in the amine group : proteins

Made according to instructions from DNA: proteins

Explanation:

The cells of the human body synthesize proteins from the transcription and translation processes.

Fats and carbohidrates are ingested in the diet and metabolized by the body. However some types of fat such as cholesterol is synthesized by the human body. Same as phospholipids that are part of the membranes.

Proteins are formed by hydrogen, oxygen, nitrogen and carbon. Amino acids are characterized  for owning a carboxyl group (- COOH) and an amino group (-NH2)

3 0
3 years ago
Cells can be prokaryotic or eukaryotic. Which of the following structures is present in eukaryotic cells but not in prokaryotic
Sonbull [250]

Answer:

nucleus

Explanation:

eukaryotic has a nucleus, prokaryotic does not

6 0
2 years ago
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