Tay-Sachs disease results from the malfunction of
A) mitochondria.
B) lysosomes.
C) endoplasmic reticulum.
D) nucleoli.
Answer: B
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Chromosomal gene exchange is not useful in classification studies because prokaryotes do not reproduce sexually.
Answer the following statement true (T) or false (F)
Similar families of organisms are next grouped together in the same:a
class b. order c. genus d. phylum e. kingdom
If a chromosome fragment breaks off and then reattaches to the original chromosome but in the reverse direction, the resulting chromosomal abnormality is called a(n)
A) deletion. B) inversion. C) translocation. D) reciprocal translocation.
The physical, chemical and biological conditions a species needs to survive and reproduce is a(n) ____
a. meta-community b. habitat c. biome d. ecosystem e. niche