__________ is one explanation for why new human species have not emerged in millions of years.
A. The Hardy-Weinberg theory
B. Gene flow
C. Mutation
D. The founder effect
Question 2
Continuous traits are those that __________.
A. are passed from parent to child without skipping any generations
B. are determined by genes at multiple genetic loci and result in a gradation of phenotypic expression
C. are produced by genes shared by all members of a species
D. emerged during Gregor Mendel's attempts to create hybrid pea plants
Some viruses that cause human diseases.
The hemispheres of the human brain.
Preschool: 3–6 years.
The traditional human karyotypes derived from a normal female and a normal male
Life support system of a developing human
Normal karyotype of a human male