The process by which homologous chromosomes exchange genetic material
A. is crossing-over.
B. occurs only during DNA replication.
C. is independent assortment.
D. is random fertilization.
E. occurs only in animals.
A. is crossing-over.
You might also like to view...
Bacterial resistance to penicillin began to appear ____
a. several decades after its first use b. 100 years after its first use c. after the drug was developed from synthetic sources d. during the AIDS outbreak in the 1980s e. within a few years of its introduction into general use
In 2003, Japan restricted imports of beef from the United States because of fear of mad cow disease. This is an example of
a. an anti dumping measure. b. protecting an infant industry. c. a voluntary restraint measure. d. a technical barrier.
In __________ speciation, a geographic barrier
interrupts gene flow between populations. Fill in the blank(s) with the appropriate word(s).
You have isolated a motile, gram-positive cell with no visible nucleus. You can safely assume that the cell
A) has 9 pairs + 2 flagella. B) has a mitochondrion. C) has a cell wall. D) lives in an extreme environment. E) has cilia.