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College DNA, RNA, and Genetics Questions

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College DNA, RNA, and Genetics
College DNA, RNA, and Genetics
Which of the following statements regarding ribosome function in protein synthesis is true?
  1. They synthesize the protein in the nucleus
  2. The dopy the DNA from the nucleus and move it to the cytoplasm
  3. Their anticodons bind to the mRNA
  4. They synthesize the protein by reading the copy of the mRNA
College DNA, RNA, and Genetics
Which of the three answer choices must genetic material be?
  1. able to store information that is used to control metabolic activites of cells or organisms
  2. able to undergo changes (mutations) providing the genetic variability required for evolution
  3. stable so it can be replicated accurately during cell division and be transmitted for generations
  4. strong and active enough to support living things through DNA replication and experience change
College DNA, RNA, and Genetics
Phenotypes are frequently the result of interactions between                                   .
  1. single genes only
  2. the environment only
  3. multiple genes and the environment
  4. transposons
College DNA, RNA, and Genetics
In a mating between two heterozygotic individuals (e.g. Rr X Rr) with alleles that show a complete dominance and recessive relationship between the alleles which statement would be true?
  1. There is a phenotypic difference between Rr and RR individuals.
  2. The probability of having individuals that have the genotype RR is 50%
  3. The probability of having indivuals that have the genotype Rr is 25%
  4. Phenotypically there is no difference between the RR and Rr indivduals
College DNA, RNA, and Genetics
Based on the principle of independent assortment, which of the following statements is true?
  1. a male child is more likely to inherit blue eyes from his father than his mother.
  2. a child is more likely to inherit blue eyes from his mother if he also inherits his brown hair.
  3. a child will inherit brown hair from his mother rather than red hair from his father if brown hair is more adapted to the environment
  4. a child's inheritance of blue eyes is not dependent on his inheritance of his father's red hair
College DNA, RNA, and Genetics
In a nucleosome, what is the DNA wrapped around?
  1. histones
  2. ribosomes
  3. polymerase molecules
  4. a thymine dimer
College DNA, RNA, and Genetics
Mendel's law of independent assortment may not be true if the genes are                                                             .
  1. on different chromosomes
  2. on the same chromosome
  3. controlling different steps in the same biosynthetic pathway
  4. control different phenotypic characteristics
College DNA, RNA, and Genetics
College DNA, RNA, and Genetics
Restriction endonuclease is the protein-based catalyst that can                                      .
  1. cut DNA strands open at specific site
  2. link two DNA strands together
  3. replicate DNA by the pairing rules
  4. degrade antibiotics effectively
College DNA, RNA, and Genetics
College DNA, RNA, and Genetics
There is at least ONE SPECIFIC tRNA MOLECULE FOR EACH               .
  1. 22 Amino acids
  2. 23 Amino acids
  3. 48 amino acids
  4. 20 Amino acids
College DNA, RNA, and Genetics
College DNA, RNA, and Genetics
For what can CRISPRs be used?
  1. modify single genes
  2. delete whole chromosomes
  3. induce inversions of large segments of the shromosomes
  4. create translocations
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