Two Martians fall in love and marry. One Martian is homozygous for red eyes and the other is
heterozygous. The recessive eye color is purple. What is the probability that the alien couple will have
a child that is heterozygous for eye color?
a. 1
b. 1/2
c. 1/4
d. 3/4
e. 0
B
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An animal that does NOT maintain a relatively constant internal water concentration as the osmolarity of its environment varies is termed an
A. osmoconformer. B. osmoregulator. C. isoconformer. D. isoregulator. E. hydroconformer.
The chloroplast shares many similarities with which organelle?
a. mitochondrion b. rough endoplasmic reticulum c. nucleus d. Golgi complex e. lysosome
Below is a pedigree of a human genetic disease in which solid color indicates affected individuals. Assume that the disease is caused by a gene that can have the alleles A or a. If individuals 1 and 4 have a child together, what is the probability that the child will exhibit the disease?
A) 0%
B) 25%
C) 50%
D) 75%
E) 100%
If a DNA sequence on one strand is ATCGATG, what is the corresponding sequence on the other strand?
a. TAGCTAC b. UAGCUAC c. TUGCUTC d. ATCGATG e. TTACGTC