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oksano4ka [1.4K]
3 years ago
5

What is infencious disease

Biology
1 answer:
babymother [125]3 years ago
6 0

Answer:

Infectious diseases are diseases caused by living organisms like viruses and bacteria. They can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B.

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The homologous chromosomes are passed on to one haploid cell. <span>The benefit is that one haploid cell get the majority of nutrients.</span>
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How does a typical virus get inside a cell
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How do you determine amino acid sequencing
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3 years ago
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42) When yellow-seeded and green-seeded pea plants are crossed, all the offspring are yellow-seeded. When the F1 yellow-seeded p
meriva

Answer:

See the answer below

Explanation:

From the illustration, the yellow color trait is dominant over the green trait.

<em>Assuming that yellow seededness is represented by the allele Y and green seededness by the alleles y. Y is dominant over y, hence a yellow seeded plant would be either YY or Yy while a green seeded plant would be yy.</em>

For a cross between a yellow seeded plant and a green seeded plant to yield all yellow seeded offspring, it means that the parents are YY and yy.

         (yellow)YY    x   (green) yy

F1 progeny: All Yy (yellow)

Now, Yy is crossed with green-seeded plant, yy.

                Yy    x    yy

          Yy    Yy    yy    yy

Hypothesized Genotypic ratio

Yy = 1/2

yy = 1/2

Hypothesized Phenotypic ratio

Yellow seeded = 1/2

green seeded = 1/2

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