In humans, hair texture is an incompletely dominant trait. Curly is the dominant genotype, wavy is heterozygous, and
straight hair is recessive. What is the probable phenotypic ratio for a cross between a man with wavy hair and a woman
with curly hair?
a. All wavy hair
b. 3/4 wavy hair; 1/4 straight hair
c. 1/2 wavy hair; 1/2 curly hair
d. All curly hair
e. 1/4 curly hair; 1/2 wavy hair; 1/4 straight hair
ANSWER: c
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c. Exergonic d. Endergonic e. Kinetic
A significant event influencing the rapid
evolution of plants on land after their initial appearance was the a. increase of atmospheric oxygen. b. reduction of ultraviolet radiation penetration through the atmosphere. c. stabilization of global climates. d. increase in soil nutrients. e. merging of land masses
A decreased risk of epigenetic imprinting disorders, such as Beckwith-Wiedemann syndrome, is observed in children
conceived following ART. a. True b. False
Provide three types of evidence (from different subdisciplines in biology) that scientists commonly use to provide support for the theory of evolution
What will be an ideal response?