When electrons are equally shared between two atoms, a(n) ________ bond is formed
a. hydrogen
b. polar covalent
c. ionic
d. nonpolar covalent
d
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Who developed the individualistic model?
A. Daniel Simberloff B. Frederic Clements C. Henry Allan Gleason D. Joseph Connell E. E. O. Wilson
What is the term for crosses between parents that differ in only one trait?
A) Testcrosses B) Cross fertilize C) Monohybrid crosses D) Dihybrid crosses E) Reciprocal crosses
How does recombination frequency relate to activities in the cell?
a. Recombination frequency relates to activities in the cell by the frequency at which mutation disrupt the proper functioning of a gene. b. Recombination frequency relates to activities in the cell by the frequency at which post-transcriptional editing results in new functions for the product of a gene. c. Recombination frequency relates to activities in the cell by the frequency at which crossing over in meiosis separate two genes that were located on the same chromosome. d. Recombination frequency relates to activities in the cell by the frequency at which non-disjunction errors are generated by chromosomes refusing to separate during anaphase I.
Which types of phenotypic ratios are likely to occur in crosses when dealing with a single gene pair for which all the genotypic combinations are of equal viability?
A) 2:3, 1:2 B) 1:4:6:4:1, 1:1:1:1 C) 9:3:3:1, 27:9:9:9:3:3:3:1 D) 12:3:1, 9:7 E) 1:2:1, 3:1