Color blindness is a recessive X-linked trait. A normal couple has a color-blind child. Who else in this family is probably color blind?
A. the child's maternal grandfather
B. the child's maternal grandmother
C. the child's paternal grandfather
D. the child's paternal grandmother
E. the child's maternal grandmother or grandfather
A. the child's maternal grandfather
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The insulin receptor is an example of ____
a. a G protein coupled receptor b. a hydrophobic receptor c. a hormone receptor d. a receptor tyrosine kinase e. an ion channel receptor
A human body cell that has 46 chromosomes goes through mitosis and produces two daughter cells that each have ________ chromosomes
a. 92 b. 23 c. 2 d. 46
Four of the five answers listed below are features of the pericycle. Select the exception
a. can continue to differentiate b. origins of lateral roots c. found in the root, but not in the stem d. site for food storage e. located inside the endodermis
The sequence of DNA on each chromosome where the sister chromatids are held together is called the
a. centrosome. b. kinetochore. c. centromere. d. centriole.