Q: Antibiotics such as tetracycline, streptomycin, and bacitracin are small organic
Antibiotics such as tetracycline, streptomycin, and bacitracin are small organic molecules that are synthesized by particular species of bacteria. Microbiologists have hypothesized that the reason why...
See AnswerQ: Certain forms of human color blindness are inherited as X-linked
Certain forms of human color blindness are inherited as X-linked recessive traits. Hemizygous males are color-blind, but heterozygous females are not. However, heterozygous females sometimes have part...
See AnswerQ: A black female cat (XB XB ) and an orange male
A black female cat (XB XB ) and an orange male cat (X0 Y) were mated to each other and produced a male cat that was calico. Which sex chromosomes did this male offspring inherit from its mother and fa...
See AnswerQ: What is the spreading phase of X-chromosome inactivation? Why
What is the spreading phase of X-chromosome inactivation? Why do you think it is called a spreading phase?
See AnswerQ: Conjugation is sometimes called bacterial mating. Is it a form of
Conjugation is sometimes called bacterial mating. Is it a form of sexual reproduction? Explain.
See AnswerQ: When does the erasure and reestablishment phase of genomic imprinting occur?
When does the erasure and reestablishment phase of genomic imprinting occur? Explain why it is necessary to erase an imprint and then reestablish it in order to always maintain imprinting from the sam...
See AnswerQ: In what types of cells would you expect de novo methylation to
In what types of cells would you expect de novo methylation to occur? In what cell types would it not occur?
See AnswerQ: On rare occasions, people are born with a condition known as
On rare occasions, people are born with a condition known as uniparental disomy. It happens when an individual inherits both copies of a chromosome from one parent and no copies from the other parent....
See AnswerQ: Genes that cause Prader-Willi syndrome and Angelman syndrome are closely
Genes that cause Prader-Willi syndrome and Angelman syndrome are closely linked along chromosome 15. Although people with these syndromes do not usually reproduce, let’s suppose that a couple produces...
See AnswerQ: How is the process of X-chromosome inactivation similar to genomic
How is the process of X-chromosome inactivation similar to genomic imprinting? How is it different?
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