Nancy and Cliff had four children who did not have cystic fibrosis, but their fifth child was born with the disease. Cystic fibrosis is carried on a recessive gene. Given what you've learned in this chapter, how could this happen?
a. It wasn't until the fifth child that both parents passed on the allele for this illness
b. Recessive genes normally skip a generation, but after the parents had five children, the gene was expressed.
c. Their fifth child must have been a boy, which makes it more probable that he would have the illness.
d. Their fifth child must have been a girl, which makes it more probable that she would have the illness.
a
You might also like to view...
Which statement about REM sleep is TRUE?
A) REM sleep alternates throughout the night with other stages of sleep and always occurs immediately after stage 4 sleep. B) REM sleep alternates throughout the night with other stages of sleep and tends to decrease in duration throughout the night. C) REM sleep alternates throughout the night with other stages of sleep and tends to increase in duration throughout the night. D) REM sleep occurs once each night, usually right before you wake up.
"I just can't decide. Do I want to vacation in the Caribbean or Hawaii? Both are great places.". This person is experiencing an:
a. approach-approach conflict c. affect-effect conflict b. active-active conflict d. approach-avoidance conflict
A(n) _________ is a nerve cell
a. axon c. dendrite b. neuron d. glial cell
You need to remove a broken light bulb from a lamp. Without a pair of gloves, you are likely to cut yourself on the jagged glass
Suddenly, it occurs to you that you can use a cut potato to remove the light bulb from the socket, by jamming the potato into the remaining broken glass and twisting the bulb out. You have just demonstrated ___________. a) generalization b) discrimination c) latent learning d) insight learning