In mice, the gene for insulin-like growth factor is imprinted. During embryonic development, only the paternal allele for insulin-like growth factor is expressed. This means
A. that the paternal allele is imprinted.
B. that the maternal allele is imprinted.
C. that the paternal allele is hyper-methylated.
D. that the paternal allele is mutated.
E. that the maternal allele is expressed.
B. that the maternal allele is imprinted.
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What represents the correct order of events during prophase I?
A. Pachytene - diplotene - diakinesis - leptotene - zygotene B. Leptotene - zygotene - pachytene - diplotene - diakinesis C. Zygotene - leptotne - pachytene - diakinesis - diplotene D. Diplotene - pachytene - leptotene - diakinesis - zygotene
Which of the following is NOT one of the kingdoms included within the Eukarya domain?
a. Archaea b. Plantae c. Fungi
Pyramids often are used to show the relative amount of energy that each organism in the next higher level can obtain from the lower-level organism. Which organisms in this food web would make up the lowest level of the pyramid?
A) killer whale B) small animals C) leopard seal, elephant seal, crabeater seal D) algae
In order to maintain homeostasis, parathyroid hormone would stimulate what response to low blood calcium levels?
A) prompt bones to store calcium B) reduce urine production at the kidneys C) stimulate the hunger drive D) prompt bones to release stored calcium E) stimulate the thirst drive