If an individual who is homozygous for type B blood marries a heterozygous type A individual, what is the chance that their first child will have type AB blood?
A) 0% B) 25% C) 50% D) 100% E) 75%
C
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You awaken to find yourself lying on the bare ground, dirty and injured. In the dim light, you can make out wreckage around you and surmise that you have survived a plane crash. Over the next few days, you wander the hot, humid area and find an amazing number of different plant and insect species. You are able to trap and eat several rodent size mammals, but do not see any larger mammals. Into what biome did your plane crash?
A. Tropical grassland B. Taiga C. Temperate rain forest D. High desert E. Tropical rain forest
Farsightedness can be caused by:
a. a longer than normal eyeball b. a shorter than normal eyeball c. weak lens muscles d. a longer than normal eyeball and/or weak ciliary muscles e. a shorter than normal eyeball and/or weak ciliary muscles
If a normal egg is fertilized by a sperm which
has an extra chromosome, what will be the chromosomal condition of the zygote?
a. three copies of the affected chromosome and two of all others b. three copies of all chromosomes c. four copies of the affected chromosome and two of all others d. one copy of the affected chromosome and two of all others e. two copies of all of the chromosomes
The Hox gene clusters in mouse are very similar to those identified in Drosophila. Indicate whether the statement is true or false