Which statement is false concerning X chromosome inactivation?
A. It is an accident of evolution.
B. It is an example of dosage compensation.
C. It is a gene control mechanism.
D. It is responsible for the normal development of female embryos.
E. It does not occur in males.
Answer: A
You might also like to view...
If Escherichia coli is cultured in broth containing both glucose and lactose, it
A. uses lactose preferentially until the supply is exhausted, then uses glucose. B. uses glucose preferentially until the supply is exhausted, then uses lactose. C. uses only the glucose (it cannot use lactose as a source of carbon). D. uses glucose and lactose simultaneously.
An example of pharming is ____
a. photosynthetic bacteria that clean up oil spills b. transgenic sheep that produce a protein required for normal blood clotting in humans c. E. coli that synthesize restriction enzymes for use in genetic engineering d. yeast that produce ethanol for use as fuel in vehicles e. a genetically modified crop plant that is resistant to pesticide
In the garden pea, Mendel found that tall (D) green pods (G) and inflated pods (C) were dominant to
their alleles, dwarf (d) yellow pods (g) and constricted pods (c). Given the following genotypes, determine the chances of producing the offspring shown. (a) DD Gg Cc ? Dd Gg cc ? DD gg Cc (b) DD Gg Cc ? Dd Gg Cc ? tall green pod, constricted pod (c) Dd Gg Cc ? Dd GG cc ? tall green pod, inflated pod (d) Dd Gg Cc ? Dd Gg Cc ? D__ G__ cc (e) Dd Gg Cc ? Dd gg CC ? D__ G__ C__ (f) Dd gg cc ? DD Gg cc ? tall green pod, inflated pod (g) Dd Gg Cc ? Dd Gg Cc ? Dd Gg Cc (h) Dd Gg Cc ? Dd Gg Cc ? dd gg cc What will be an ideal response?
Which of the following is a colonial form of green algae?
A) Volvox B) Giardia C) Paramecium D) Plasmodium