Diploid nuclei of the ascomycete Neurospora crassa contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of the daughter cells by one round of mitosis, producing a total of eight ascospores. If a single, diploid G₂ nucleus in an ascus contains 400 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many chromosomes? A. 100 ng on 7 chromosomes B. 100 ng on 14 chromosomes C. 200 ng on 7 chromosomes D. 200ng on 14 chromosomes

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23-08-2022
Biology

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Diploid nuclei of the ascomycete Neurospora crassa contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of the daughter cells by one round of mitosis, producing a total of eight ascospores. If a single, diploid G₂ nucleus in an ascus contains 400 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many chromosomes? A. 100 ng on 7 chromosomes B. 100 ng on 14 chromosomes C. 200 ng on 7 chromosomes D. 200ng on 14 chromosomes

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Tutorconsortium322 Tutorconsortium322 · Answer 1 · 2022-08-30T00:38:27-04:00

Option (A) 100 ng on 7 chromosomes.

If a single, diploid G₂ nucleus in an ascus contains 400 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain 100 ng of DNA on 7 chromosomes.

What is chromosome?

A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code.
Histones, which serve as packing proteins for the majority of eukaryotic chromosomes, work with chaperone proteins to attach to and condense the DNA molecule in order to preserve the integrity of the molecule.

A chromosome's primary purpose is to transport genetic material from one generation to the next.
Gene control, protein synthesis, and cellular replication are all functions of chromosomes. DNA may be precisely duplicated during these cell divisions thanks to chromosomes.

Chromosomes come in four different types: metacentric, sub-metacentric, acrocentric, and telocentric.

Learn more about Chromosomes here:

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