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Cystic fibrosis (CF) is caused by a recessive allele.  A child has CF, even though neither of his parents does.  What can you conclude about the parents?

In violets, the B allele produces blue flowers and is dominant to the b allele that produces white flowers, and the C allele produces curly leaves and is dominant to the c allele that produces straight leaves.  If a plant’s genotype was bbCc, which gametes could it produce?

The muscles in the wall of the uterus and urinary bladder are

The type of tissue that forms sweat glands is ________ tissue.

Horns are composed of

Pacinian corpuscles are important in the perception of

The ventilator is a volume controller if the _______ is measured and used as a feedback signal to control the volume delivered. 

In a compound follicle a primary hair is also known as a _____ hair.

Scar tissue is made from

The area at the base of the neck of an animal between its front legs that covers the cranial end of its sternum is called the?