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MaRussiya [10]
3 years ago
8

Which of the following is common feature of the illustrated reactions showing the linking of honomers to form macromolecules?

Biology
1 answer:
bija089 [108]3 years ago
6 0

Answer:

Monomers are joined by a covalent bond, and a water molecule is produced

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Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a population
iVinArrow [24]

Answer:

1. Mutation

2. Epigenetics

Explanation:

1. Mutation occurs when there is a change in an organism's DNA sequence as a result of mistakes in DNA replication or as a result of environmental factors like smoking. The mutation in a single organism can be passed on to other generations hence causing a genetic variation in the population, this obeys the Darwin's law that inherited traits (genetic) are passed on to other generations

2. Epigenetics are changes in gene expression that doesn't involve changes in the DNA sequences unlike mutation. This changes can be passed on to other generations and hence cause a variation in the population. This obeys the Lamarckian evolution that acquired traits are passed on to other generations.

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

7 0
3 years ago
What proportion of the population is probably heterozygous (Aa) for this trait?
bogdanovich [222]

The correct option is 3). 0.5. Since recessive homozygous are 25% of the total individuals, we could assume that their parents genotype was heterozygous. Only a double heterozygous cross (that is Aa -male- <> Aa -female) could produce the observed (25%) homozygous proportion. Following this assumption, the heterozygous proportion will be 50%.

3 0
1 year ago
Asbestos causes most damage by being:
erica [24]

The answer is D, being breathed into the lungs.

7 0
3 years ago
Read 2 more answers
The function of the marrow of long bones in the body is to?
Alina [70]

Answer:

Make red blood cells

Explanation:

Bone marrow is a spongy substance found in the center of the bones. It manufactures bone marrow stem cells and other substances, which in turn produce blood cells. Each type of blood cell made by the bone marrow has an important job. Red blood cells carry oxygen to tissues in the body.

8 0
3 years ago
Which diagram can be used to show the population of producers, primary
Gala2k [10]
It’s D.Food Web.........
3 0
3 years ago
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