Diploid cells have two copies of each chromosome
1.True
2.False
1
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Which of the following aspects is NOT
characteristic of diatoms?
a. overlapping shell b. live in fresh water and cool seas c. silica composition d. flagella e. photosynthetic
Athletes and bodybuilders who use growth hormone to improve athletic performance and muscle mass
risk the development of a. hair loss. b. gigantism. c. low blood pressure. d. diabetes. e. hypothyroidism
In reciprocal hybrid crosses, the heterogametic sex is typically sterile while the homogametic sex is not. This phenomenon is referred to as
A) hybrid incompatibility. B) postzygotic isolation. C) Haldane's rule. D) male sterility. E) None of these
What is formed by the three layers of tissue that include the endoderm, mesoderm, and ectoderm?
A) zygote B) blastocyst C) gastrula D) fetus