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aniked [119]
3 years ago
7

10. What are the main respective constituents of cell walls in bacteria, protists, fungi and plants?

Biology
1 answer:
zimovet [89]3 years ago
6 0
Bacteria's cell wall is made of peptidoglycans; among protists Algae have cell walls made of cellulose.

Fungi's cell wall is made up of chitin.

Plants cell wall is made of cellulose.


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Suppose a population is carrying a condition controlled by two alleles: R (dominant) and r (recessive). Only homozygous individu
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<span><u>The answer is A. 72.25 percent.</u>

The Hardy-Weinberg principle can be used:</span>

<em>p² + 2pq + q² = 1</em> and <em>p + q = 1</em>

where <em>p</em> and <em>q</em> are the frequencies of the alleles, and <em>p²</em>, <em>q²</em> and <em>2pq </em>are the frequencies of the genotypes.

<span>The <em>r</em> allele (<em>q</em>) is found in 15% of the population:
q = 15% = 15/100
Thus, q = </span><span>0.15

To calculate the <em>R</em> allele frequency (<em>p</em>), the formula p + q = 1 is used:
If p + q = 1, then p = 1 - q
p = 1 - 0.15
Thus, </span><span>p = 0.85

Knowing the frequency of the <em>R</em> allele (<em>p</em>), it is easy to determine the frequency of the RR genotype (p²):
p² = 0.85² = 0.7225

Expressed in percentage, p² = 72.25%.</span>

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The correct option is D.
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