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Kamila [148]
3 years ago
12

Please match the white blood cells with the statements that most accurately describe them to test your understanding of the beha

vior of white blood cells.
Biology
1 answer:
Artyom0805 [142]3 years ago
8 0

Following are the statements:

1. Main phagocytes in circulation

2. Like eosinophils, they are involved in inflammation and allergic reactions

3. Phagocytic cells that leave circulation and differentiate into macrophages

4. Display no antigen specificity but are active against tumor and virally infected cells

Answer:

1. Neutrophils

2. Basophils

3. Monocytes

4. Natural killer cells

Explanation:

Neutrophils can be described as the most abundant type of white blood cells. They make up to 55%- 75% of the immune system.

Basophils can be described as white blood cells which are made in the bone marrow.

Monocytes can be described as white blood cells which are the largest and differentiate into macrophages and myeloid lineage dendritic cells.

Natural killer cells can be described as white blood cells which play a role in providing innate immunity.

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A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
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Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

q^2\\= (0.3)^2\\= 0.09

As per Hardy-Weinberg's second equation of equilibrium

p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42

Hence, option C is correct

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