Which of the following statements is TRUE?
A. Alleles, genes, and loci are different names for the same thing.
B. Genes have different versions, which are known as alleles.
C. The phenotype of a dominant allele is never seen in the F1 progeny of a monohybrid cross.
D. The genotype is the physical appearance of a trait.
Ans: B. Genes have different versions, which are known as alleles.
You might also like to view...
This flagellate is pear-shaped with "falling leaf" motility. It contains variant-specific surface proteins (VSPs) on its surface, which provide a mechanism for the organism to survive in the small intestine as a result of its ability to resist intestinal proteases. The organism is:
a. G. duodenalis. b. C. mesnili. c. D. fragilis. d. E. hominis.
The breakdown of sugar during cellular respiration is considered which of the following processes?
a. anabolic b. catabolic c. metabolic d. bioenergetic
An electrocardiogram (ECG, EKG) is a measure of the heart's:
a. electrical system. b. blood flow to the body. c. contraction rate. d. blood flow to heart muscle. e. pumping ability.
An important part of maintaining homeostasis is regulating the amount of water released or absorbed by the body. Which two systems mainly work together to perform this function?
a) circulatory and respiratory systems b) digestive and excretory systems c) digestive and respiratory systems d) circulatory and digestive systems