Single nucleotide polymorphisms (SNPs) are organized into blocks called ____ and are inherited together
a. haplotypes
b. chromosome assemblies
c. DNA assemblies
d. multifactorial genes
e. threshold groups
a
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Which of the following types of cells is matched with the wrong stem cell category?
A. embryonic stem cells, pluripotent B. embryonic germ cells, pluripotent C. hematopoetic stem cells, multipotent D. lymphoid progenitor, unipotent E. zygote, totipotent
The efferent arterioles transport blood directly into the:a
afferent arterioles. b. Bowman's capsule. c. glomerulus. d. peritubular capillaries. e. renal artery
Which of the following contradicts the one-gene, one-enzyme hypothesis?
A) A mutation in a single gene can result in a defective protein. B) Alkaptonuria results when individuals lack a single enzyme involved in the catalysis of homogentisic acid. C) Sickle-cell anemia results in defective hemoglobin. D) A single antibody gene can code for different related proteins, depending on the splicing that takes place post-transcriptionally.
All animals are ____.
A. multicellular, heterotrophic, and motile B. multicellular, heterotrophic, and have walled cells C. unicellular, autotrophic, and motile D. multicellular, autotrophic, and reproduce sexually E. unicellular, autotrophic, and reproduce asexually