__________________ is an opening or split in the roof of the mouth/lip that occurs when the tissue doesn't fuse together during development in the womb.

________________ is an individual's collection of genes expressed in letters.

disk shaped group of tissue where small blood vessels from the mother and offspring join, but don’t meet.

Having two identical alleles of a particular gene or genes.

a condition where the head is smaller than expected

Having two different alleles of a particular gene or genes is called what?

The tube that leads from the bladder through the penis and carries both semen and urine to the outside of the body.

A penis that is not circumcised may be more susceptible to infection as greater attention is needed in cleansing. T/F

The Female sex hormone is called the

Tubes that carry the sperm from the epididymis to the seminal vesicles

As the sperm move through the vas deferens, they are combined with a fluid produced by the ______________________.

The first growth period from conception to about 2 weeks is known as