Two populations of catfish have lived in separate neighboring lakes for many generations. Population A contains about 30% short whiskered catfish (ww) and 70% long whiskered catfish (WW or Ww); Population B contains about 10% short whiskered catfish and 90% long whiskered catfish. Following a year of record rainfall, both lakes rise enough to allow the catfish populations to swim between the two lakes and interbreed. What will be the effect(s) over time of this interbreeding?
_____ DIfferences in the frequencies of W and w between the two populations will increase.
_____ Population A will see an increase in long whiskered fish, but Population B will not see any changes in the prevalence of the two phenotypes.
_____ Population A will see an increase in long whiskered fish and Population B will see an increase in short whiskered fish.
_____ Population B will see an increase in short whiskered fish, but Population A will not see any changes in the prevalence of the two phenotypes.
_____ DIfferences in the frequencies of W and w between the two populations will decrease.
_____ Population A and Population B will experience an increase in genetic diversity.
_____ DIfferences in the frequencies of W and w between the two populations will increase.
_____ Population A will see an increase in long whiskered fish, but Population B will not see any changes in the prevalence of the two phenotypes.
__X__ Population A will see an increase in long whiskered fish and Population B will see an increase in short whiskered fish.
_____ Population B will see an increase in short whiskered fish, but Population A will not see any changes in the prevalence of the two phenotypes.
__X__ DIfferences in the frequencies of W and w between the two populations will decrease.
__X__ Population A and Population B will experience an increase in genetic diversity.
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If an individual is homozygous for a certain trait, it means that:
A. it is rare in the population. B. it is a recessive trait. C. the individual received the same allele from each parent. D. it is a dominant trait. E. None of the answer options is correct.
A hydrogen bond is
a. a sharing of a pair of electrons between a hydrogen and an oxygen nucleus. b. a sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleus. c. an attractive force that involves a hydrogen atom and an oxygen or a nitrogen atom that are either in two different molecules or within the same molecule. d. found only in water molecules. e. is the strongest form of chemical bond.
The percent oxygen saturation of hemoglobin is highest in the:
a. tissues where oxygen concentration is lowest. b. tissues where oxygen concentration is highest. c. venules where oxygen concentration is lowest. d. pulmonary capillaries where oxygen concentration is lowest. e. pulmonary capillaries where oxygen concentration is highest.
The most diverse of the four eukaryotic kingdoms is the
A. Protista Kingdom. B. Animalia Kingdom. C. Plantae Kingdom. D. Bacteria Kingdom.