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Molodets [167]
4 years ago
6

Starting in 1945, nets designed to catch the biggest salmon were used in the Pacific Northwest. As a result, the smaller salmon

had an advantage and had a better chance of survival. The small salmon survived to pass on their genes to succeeding generations.
Which type of natural selection is at work here?
directional selection
disruptive selection
stabilizing selection
Biology
2 answers:
frutty [35]4 years ago
8 0

Answer:

A. on e2020

Explanation:

directional selection

andre [41]4 years ago
5 0
Salutations!
Your answer is: A: Directional selection
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pollination

Explanation:

this is the obvious answer because pollen and **pollen**ation

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The wild-type form of a gene encodes a protein of length 100 amino acids. A mutant allele has a UAA (instead of the wild-type, C
Orlov [11]

Answer:

48 amino acids

Explanation:

The wild type gene codes for a protein with 100 amino acids. One amino acid is encoded by one triplet code of the gene. This means that the wild type gene has a total 100 triplets or 300 nucleotides to code for a protein of 100 amino acid. Mutation in this protein has introduced the code "UAA" at the 49th codon. The code "UAA" is a stop codon. Therefore, the mRNA transcribed from the mutant allele would code for a protein having 48 amino acids as the protein synthesis will be stopped once the stop codon at the 49th position is read.

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3 years ago
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Softa [21]
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3 years ago
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C₄ plants differ from C₃ and CAM plants in that C₄ plants _____. a. transfer fixed carbon dioxide to cells in which the Calvin c
lana [24]

Answer:

The correct answer is -transfer fixed carbon dioxide to cells in which the Calvin cycle occurs

Explanation:

In C4 plants the light reaction and Calvin cycle occurs in two different cell that are mesophyll cell and bundle sheath cells. First, the CO₂ is fixed into 4- carbon oxaloacetate by an enzyme PEP carboxylase.  

Then this oxaloacetate is converted into a simpler form called malate. Malate molecule then enters into bundle sheet cell and there it releases one molecule of CO₂. This CO₂ enters the Calvin cycle which results in the sugar formation with the help of enzyme rubisco.

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