Biology, 14.06.2021 16:00 gebradshaw2005
All of the following are true about the structure of DNA excepta.
a. the long strands of nucleotides are twisted into a double helix.
b. short strands of DNA are contained in chromosomes inside the nucleus of a cell.
c. DNA consists of two strands of nucleotides joined by hydrogen bonds.
d. every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base.
Answers: 3
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Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.
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Biology, 22.06.2019 04:40
Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening
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All of the following are true about the structure of DNA excepta.
a. the long strands of nucleotide...
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