What is the packing ratio of a chromosome and what is its range in a single chromosome?
What will be an ideal response?
Ans: The packing ratio is a measure of the compactness of a chromosome, calculated as the length of DNA (in base pairs) divided by the length of the chromosome (in ?m) at a given time. The maximum packing ratio of a eukaryotic chromosome, which occurs during mitosis, is about 7000; during interphase, typical packing ratios are about 1000 to 2000.
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a. atria b. ventricles c. aorta d. coronary arteries
When proteins are used as energy sources, their breakdown subunits usually enter ____
a. glycolysis b. electron transfer chain c. the Krebs cycle d. alcoholic fermentation e. lactate fermentation
The structures labeled "B" in the figure are
a. zygospores. b. haploid spores. c. ascospores. d. gametes. e. zygotes.
Photosystem II generates ________, and photosystem I generates ________, both of which are required by the light reactions
Fill in the blank(s) with correct word