3. The sex of mammals is determined by:
A. the autosomes they receive.
B. the type of sex chromosomes received.
C. the number of recessive chromosomes received.
D. None of these answers is or may be a factor.
is it B
You are correct.
To determine the sex of mammals, the answer is option B - the type of sex chromosomes received. Mammals have two sex chromosomes, known as X and Y. The combination of these chromosomes determines the sex of an individual.
Typically, females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). The presence of the Y chromosome determines the development of male reproductive structures.
To get the answer to this question, one must have knowledge of genetics and mammalian reproductive biology.