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slamgirl [31]
3 years ago
10

A ________ is any environmental agent—biological, chemical, or physical—that causes damage. a contaminant b mutagen c teratogen

d zygote
Biology
2 answers:
lesya [120]3 years ago
8 0
A contaminant is any environmental agent -biological,chemical or physical that causes damage.
Ira Lisetskai [31]3 years ago
8 0

Answer;

C. tetratogen


A tetratogen is any environmental agent—biological, chemical, or physical—that causes damage


Explanation;

A tetratogen is any environmental agent—biological, chemical, or physical—that causes damage to the developing embryo or fetus.

Teratogens may cause a birth defect in the child or may halt the pregnancy outright.

The classes of teratogens include radiation, maternal infections, chemicals, and drugs.

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alekssr [168]

Answer: Hello your question is incomplete below is the complete question

Let’s look at a different gene locus, we’ll call it B. The normal, wild type, the population was 100% BB. There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce allele b. What is the gene frequency of allele b in the population if the population of Pakicetus reaches 100,000

answer : ≈ 1

Explanation:

<u>Determine the Gene frequency of allele b </u>

Population = 100,000

There are 150 Pakicetus in population i.e. 300 alleles at locus B

hence the frequency of b = 1/300 = 0.33%

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<em>therefore the Gene frequency of allele b </em>

= 0.33% * 0.33% * 100000 = 1.08  

≈ 1

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Answer:

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