Carcinomas are cancers of the ____

a. liver
b. epithelial linings
c. bone marrow
d. glands
e. lymphoid tissue


ANSWER: b

Biology & Microbiology

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Today the term “algae” is used primarily for

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Biology & Microbiology

Neandertals existed until approximately:a

5,000 years ago. b. 15,000 years ago. c. 30,000 years ago. d. 70,000 years ago. e. 100,000 years ago.

Biology & Microbiology

Organisms that reproduce sexually ________________________

(a) must be haploid, unlike organisms that reproduce asexually. (b) can reproduce only with a partner that carries the same alleles. (c) create zygotes that are genetically identical to each other. (d) undergo a sexual reproductive cycle that involves an alternation of haploid cells with the generation of diploid cells.

Biology & Microbiology

Which of the following correctly represents the probability that a detrimental autosomal recessive

allele will actually be expressed in a population if the occurrence of the allele is such that 1 in 50 individuals are heterozygous? a. 1/50 ? 1/50 = 1/2500, with 1/4 of their children homozygous recessive = 1/2500 ? 1/4 = 1/10,000. b. 1/50 ? 1/4 that are homozygous recessive = 1/200. c. 1/50 ? 2 children (on average) ? 1/4 that are homozygous recessive = 1/100. d. 1/50 ? 2 parents ? 4 children ? 1/4 that are homozygous recessive = 1/25. e. Cannot be determined from the information given.

Biology & Microbiology