All organ systems in a human embryo have formed by ____
a. day 5
b. week 2
c. week 8
d. week 15
e. the 8th month
ANSWER: c
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Steroid hormone-nuclear receptor complexes activate transcription by binding to:
A. the plasma membrane. B. hormone response elements. C. RNA Pol II. D. repressor proteins.
Which of the following best explains Mendel's Law of Segregation?
a. Both alleles are put into a gamete, and during development, the two gametes segregate by chance. b. If someone is heterozygous, they exemplify Mendel's Law of Segregation. c. Of the two copies of each gene everyone carries, only one of the two alleles gets put into each gamete. d. Organisms have one copy of a gene, and they place that copy into each gamete during the process of meiosis. e. Both gametes and fertilized eggs have two copies of each gene.
Identify the major technique that refers to placement of bacteria into a medium such as broth, blood, or a fertilized egg in order to facilitate growth.
A) isolation B) inspection C) inoculation D) identification
Which of the following forms of homeostasis would not be affected by a severe burn involving both the epidermis and dermis?
A) control of water loss by the integumentary system B) protection from microbes by the integumentary system C) defense against microbes by the immune system D) sensation of external temperature