Femaleness or maleness is genetically set at
A) gamete formation.
B) fertilization.
C) the embryonic period.
D) the fetal period.
B) fertilization.
You might also like to view...
Approximately two billion years ago, ________ were primarily responsible for initially oxygenating Earth
A) algae B) Archaea C) cyanobacteria D) purple sulfur bacteria
During the M checkpoint, the cell ____
a. proceeds to interphase and completes DNA replication b. proceeds to G2 phase and the cell prepares to divide c. proceeds to S phase or enters inactive G0 state d. monitors attachment of spindle fibers to chromosomes e. monitors completion of DNA synthesis and DNA damage
A ____ individual is always part of a testcross
a. heterozygous b. homozygous recessive c. homozygous dominant d. self-fertilized e. dihybrid
Given a log phase bacterial culture with 1 x 106 cells per ml and a generation time of 30 minutes, how long does it take the culture to reach a density of 6.4 × 107 cells per ml?
A. 1 hour B. 2 hours C. 3 hours D. 4 hours