The hominin evolutionary line diverged from that leading to the great apes about ____ million years ago
a. 1.5
b. 2
c. 3
d. 7
e. 13
ANSWER: d
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In mice, the allele for colored fur (C) is dominant to the allele for albinism (c). The allele (W) for
normal behavior is dominant to that for waltzing movement (w). Give the probable genotypes of the parents if they produced the offspring listed after the following crosses: (a) Colored normal ? white waltzer produced 10 colored normal, 8 colored waltzers, 2 white waltzers, and 11 white normal. (b) Colored normal ? white normal produced 35 colored normal and 13 colored waltzers. (c) Colored normal ? colored normal produced 37 colored normal, 14 colored waltzers, 9 white normal, and 5 white waltzers. What will be an ideal response?
Vertebrates that practice internal fertilization employ three strategies for embryonic and fetal development. In one strategy, the female retains the young which develop and obtain nourishment from the female's blood. What is this called?
A. oviparity B. ovoviviparity C. viviparity D. protogyny E. protandry
How are open reading frames or exons predicted from genomic sequence?
A) If the open reading frame is at least 10 sense codons long, it is considered an exon. B) If the sequence is absent from mRNA, it is considered an exon. C) If there is a splice donor and accept or site at the ends of the open reading frame, it is considered an exon. D) If an open reading frame is longer than 21 sense codons, it is predicted to be an exon. E) If an enhancer and promoter sequence are present, the downstream sequence is considered an exon.
When the population growth of the prey = 0, is the predator population increasing or decreasing?
a. It is always decreasing. b. It is always increasing. c. At the left point it is increasing and at the right point it is decreasing. d. At the right point it is decreasing and at the left point it is increasing.