What is the connection between the work of Mary Lyon and Murray Barr?
What will be an ideal response?
Mary Lyon put forth the theory of X-inactivation, now called lyonization. Murray Barr was the first to describe Barr bodies, which we now know are inactivated X chromosomes.
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Learning new motor skills takes place when one consciously repeats an activity many times and mostly involves the
_____. a. hippocampus b. amygdala c. hypothalamus d. corpus striatum e. cerebellum
Traits that are conditioned by one locus are most appropriately termed ________
A) qualitative traits B) quantitative traits C) continuously variable traits D) environmentally conditioned traits
N-Ras, K-Ras, and H-Ras are best described as
a) Three unrelated oncogenes that each cause sarcomas b) Three different cancer-causing mutations found in the same ras gene c) Different activation states of the Ras protein d) Three closely related genes that likely evolved from a single ras gene
There are many exceptions to Mendel's laws, including
What will be an ideal response?