In order to produce fraternal twins you must have two

a. X chromosomes.
b. sperm.
c. Y chromosomes.
d. recessive genes.


b

Psychology

You might also like to view...

What is the approximate average survival time of a patient diagnosed with Alzheimer's disease major neurocognitive disorder?

A. 4 years B. 8 years C. 15 years D. 20 years

Psychology

_____ is the name given to the use of medications to treat or control psychological problems

Fill in the blank with correct word

Psychology

The inner lining on the back of the eyeball containing receptor cells that are sensitive to light is called the ________

a. retina b. fovea c. optic nerve d. iris

Psychology

Roberta is shy, but she falls in love with Sven, who is very outgoing. This illustrates the effect of ________

a. reciprocity b. complementary traits c. similarity d. proximity

Psychology