Traits that have a continuous distribution are known as
A) quantitative traits.
B) qualitative traits.
C) phenotypic traits.
D) genotypic traits.
A
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In garden peas, one pair of alleles controls the height
of the plant, and a second pair of alleles controls flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/2 tall with purple flowers and 1/2 tall with white flowers. What is the genotype of the parents? What will be an ideal response?
Which blood component determines plasma fluid volume?
a. salts b. cells c. albumin d. hemoglobin e. cell fragments
Which of the following is not true of RNA synthesis by RNA polymerase?
A. RNA synthesis is less processive during elongation than during initiation. B. Synthesis begins with the polymerase binding two rNTP molecules. C. The polymerase frequently releases the nascent transcript before it reaches 8–10 nucleotides in length. D. The addition of an rNTP to a growing transcript is a magnesium ion-dependent reaction. E. All of the choices given are true.
Plant tissue noted for storage, secretion, and
regeneration is
a. vascular cambium. b. parenchyma. c. collenchyma. d. sclerenchyma. e. none of these