A lac Y- mutant would

A) be constitutive.
B) no longer be induced by the presence of lactose.
C) not have ?-galatosidase activity.
D) transport lactose into the cell effectively.
E) metabolize lactose.


D) transport lactose into the cell effectively.

Biology & Microbiology

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. Bone and soft tissue growth in the young is driven by ____

a. ACTH b. prolactin c. oxytocin d. growth hormone e. FSH

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The product/output from glycolysis that enters mitochondria is _____ and it is converted into____, which enters as an input of Krebs cycle.

Fill in the blank(s) with the appropriate word(s).

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Implantation occurs in the

a. ovary. b. uterus. c. vagina. d. oviduct. e. follicle.

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Which type of vaccine involves using a weakened pathogen incapable of replicating?

A) Subunit vaccines B) Attenuated vaccines C) Inactivated vaccines D) DNA vaccines E) None of these choices

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