In a monohybrid cross AA × aa, what proportion of homozygotes is expected among the F2 offspring?
A) 1/4
B) 1/2
C) 3/4
D) All are homozygotes.
E) None are homozygotes.
B) 1/2
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Cloning of plants from cuttings demonstrates that _____
A) an individual plant cell cannot de-differentiate and then redifferentiate B) differentiated plant cells may contain embryonic mRNAs C) plants lose genetic information in the differentiation process D) mature plant cells retain the full genetic information needed to carry out the developmental processes to produce a new individual plant
Meiosis I produces __________, and meiosis II produces _________ cells.
A. two diploid, two haploid B. two diploid, 4 haploid C. two haploid, 4 haploid D. two haploid, two haploid E. two somatic, two gametic
Synthetic auxins are used as
a. pesticides. b. herbicides. c. fungicides. d. insecticides. e. all of these.
Rodents typically exhibit a type ________ survivorship curve
Fill in the blank(s) with correct word