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Serggg [28]
2 years ago
15

Which statement is not correct about the antibodies?

Biology
1 answer:
Marrrta [24]2 years ago
5 0

Answer:

b. They are produced by memory B cells

Explanation:

The rapid cell division in activated B cells is followed by the differentiation of daughter cells into the plasma cells. The plasma cells are the precursor for antibodies and memory B cells. The antibodies kill the antigens while memory B cells are long-lived cells.  

Hence, antibodies are not produced by memory B cells but by plasma cells.

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Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What combinations of gametes could be produced by a het
kirill [66]

Answer:

The combinations of gametes that could be produced from heterozygous individuals for both traits are PT, Pt, pT and pt.

Explanation:

An individual is heterozygous for two traits, flower color and stem height, with a PpTt (dihybrid) genotype and a phenotype showing the dominant traits, purple flowers and tall stem.

The genes of this individual for the above-mentioned traits contain different alleles, and taking into account the independent segregation of characters, the alleles present in its gametes could be:

  • <em>Both dominant alleles: PT </em>
  • <em>One dominant and one recessive allele Pt or pT </em>
  • <em>Both recessive alleles: pt </em>

Therefore, the traits of its offspring will depend on the alleles for those traits present in the gamete to which they are combined.

6 0
3 years ago
Who was the first person to propose a heliocentric model of the universe
irina [24]
Hello There!

It was a Greek astronomer called Aristarchus of Samos.

Hope This Helps You!
Good Luck :) 

- Hannah ❤<span />
4 0
3 years ago
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Lh is released by the anterior pituitary gland to stimulate sertoli cells to produce sperm. (lo 13.2) true or false
harina [27]
This is false for a number of reasons. While LH (which stands for Leutinizing Hormone) is released by the anterior pituitary gland and can be present in both females and males, it play a more predominant role in females. Working closely with FSH (Follicle Stimulating Hormone) a surge in LH begins the process of ovulation and the development of the Corpeus Leuteum.

In Males it is used both for the production of sperm but to stimulate the production of testosterone.
4 0
3 years ago
Four different objects are placed on a number line at 0. The chart describes the motion of each object. A 2-column table with 4
PIT_PIT [208]

Answer:

Answer: I think that the answer is Z.

Explanation:

5 0
3 years ago
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The phylogeny tree above is used to explain what major idea/component of the biological theory of evolution?
GaryK [48]

Answer: I think the answer is C.

Explanation:

3 0
2 years ago
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