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Strike441 [17]
3 years ago
7

Why a genetic bottleneck can be an important evolutionary factor for a species

Biology
1 answer:
melisa1 [442]3 years ago
6 0

Answer:

Genetic drift decreases genetic diversity within a population.

Explanation:

Genetic drift decreases genetic diversity within a population. It is a change in allele frequencies due entirely to random chance and is more likely to affect smaller populations than large ones. Population bottlenecks can lead to genetic drift.

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An increase in _____atmospheric leads to an increase in the greenhouse effects A:nitrogen B; carbon dioxide C: ozone D; chlorofl
Galina-37 [17]

The answer to this question is option B for sure.

5 0
3 years ago
What term is used to describe 100’s or 1000’s of amino acids chemically combined?
hjlf

Answer:

Polypeptide

Explanation:

Amino acids are the building block and simplest unit of protein molecules. The structural composition of each amino acids is made up of an amine group (-NH2), a carboxylic acid group (-COOH), a hydrogen atom (H) and a R side chain that differentiates every amino acid from one another.

In a reaction process called condensation, amino acids are chemically joined together via the amine group of one and the carboxylic group of another. This process releases water molecule (H20) to form a bond called PEPTIDE bond between the amino acids. Several amino acids in their 100’s or 1000’s that are chemically joined this way forms a POLYPEPTIDE chain, which in turn forms the protein molecule.

8 0
3 years ago
What happens in exponential growth as the population gets larger?
marysya [2.9K]
"Exponential growth" means that the bigger it is, the faster it grows.
That's Choice 'D'.
3 0
3 years ago
Read 2 more answers
1) How is DNA condensed to form a chromosome?
frosja888 [35]

Answer:

Hello! Here are the answers:

  1. Chromosomes are a highly condensed form of a combination of DNA and protein called chromatin. DNA strands (negatively charged) are tightly wound around these proteins called histones (positively charged) to form chromosomes.
  2. Mechanism genes code for for proteins that govern life processes. These genes or portions of DNA  are called exons. DNA segments between these exons are called introns that strictly code for regulatory proteins and also contain genetic regulatory elements (DNA sequences that control gene expression).
  3. Gene expression is the process of translation of DNA sequences into proteins. The genetic code is the nucleotide sequence in the DNA itself that codes for different amino acids that combine together to form a functional protein.

Explanation:

* 2. The intronic regions are misleadingly referred to as "junk DNA" but introns code for crucial regulatory elements that control gene expression.

* 3. The genetic code determines the sequence of amino acids in various proteins.

7 0
3 years ago
Fossils are used to determine a likely pattern of how vertebrates have changed over time.
Furkat [3]

Answer:

I believe so. The shapes and ect. of bones determine how animals are evolving and how they will evolve more.

Explanation:

I hope this helps by the way. I'm not completely sure tho.

8 0
3 years ago
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