thymus has the _____ rate of cell production in the body, but only ____% of all lymphocytes entering the thymus survive to becoming circulating T-cells
Fill in the blank(s) with the appropriate word(s).
highest; 10%
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A somatic cell from a garden pea normally contains 14 chromosomes. How many sister chromatids would that cell contain during G1 of the cell cycle?
A. 0 B. 7 C. 14 D. 28 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about sister chromatids? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The material in the gray crescent of a frog embryo is necessary for normal development
a. True b. False
What are the three components of a DNA nucleotide?
A. A phosphate, a base, and a polypeptide B. A sugar, a phosphate, and a peptide C. A sugar, a base, and a polypeptide D. A sugar, a phosphate and a base
Some simple epithelia have one layer that appears to be several layers due to the cells' nuclei not lining
up. This type of tissue is a. stratified. b. columnar. c. cuboidal. d. squamous. e. pseudostratified.