How would the use of a large series of monozygotic and dizygotic twins enhance studies on the genetic basis of human behavior?
What will be an ideal response?
Monozygotic twins are genetically identical, and when reared under the same versus different environments, one can estimate the degree to which variation in behavior is determined by heredity. Dizygotic twins are genetically different but by having the same intrauterine and developing environment (if reared in the same household), one can again estimate the influence of heredity on behavioral traits.
You might also like to view...
A frameshift mutation could result from _____
A) a base insertion only B) a base deletion only C) a base substitution only D) deletion of three consecutive bases E) either an insertion or a deletion of a base
In mitosis, if a "parent" cell has 16 chromosomes, each daughter cell will have how many
chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4
Which of the following descriptions or structures does NOT match the cell type?
a. Sperm cells have flagella. b. Nerve cells have long, thin extensions. c. Epithelial cells are rectangular. d. White blood cells can change shape. e. Smallest cell are egg cells.
Assume that several members of a particular species of mosquito inadvertently entered an airplane in Asia and were transported to the United States, where they thrived as an isolated colony. What is likely to occur over time?
a. The isolated species will breed with closely related species in the United States, forming a new species. b. The species undergo sympatric speciation. c. The colony could genetically diverge in isolation and a new species could be formed. d. Genetic divergence of the population would eventually cease. e. Isolation would encourage extinction.