The skin and nervous tissues develop from which germ layer?
A) Protoplasm
B) Endoderm
C) Ectoderm
D) Mesoglea
E) Mesoderm
C
Biology & Microbiology
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A man and woman are each heterozygous for the autosomal recessive disorder cystic fibrosis. If they
want to have three children, what is the probability that only one of the children will have cystic fibrosis?
a. 1/4 b. 3/4 c. 9/16 d. 9/64 e. 27/64
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Repressor Ex. 1: Tetracycline Resistance
What will be an ideal response?
Biology & Microbiology
Which of the following is not a function of an antibody?
A) activate complement cascade B) attract phagocytes C) stimulate helper T cells D) neutralize toxins
Biology & Microbiology
What is the function of the Cas9 enzyme?
A) to cut RNA molecules B) to cut DNA molecules C) to hydrolyze proteins D) to transport DNA into cells
Biology & Microbiology