Which transport mechanism requires ATP to move materials across a plasma membrane?
True or false: In a DNA molecule, the bases are covalently bonded to each other.
2. True or false: During DNA replication, the strands of parent DNA are unwound.
3. True or false: The function of messenger RNA (mRNA) is to transfer amino acids to the ribosomes during protein synthesis.
4. True or false: The Genetic Code varies from species to species.
5. True or false: The completion of the Human Genome Project allowed us to sequence all of the human genome and to know the function of all of the genes.
6. In __________ every three bases is a/an _____________ that codes for a/an _____________.
7. True or false: During translation, the anticodon of tRNA pairs with bases in mRNA.
8. The removal of a nucleotide from a gene in the DNA leads to a _______________.
9. True or false: Cloning is a natural process for some organisms.
10. True or false: Lactose metabolizing enzymes are produced when RNA polymerase binds to the operator on the lac operon in the absence of lactose.
11. If one strand of DNA has the following sequence: CGGCTAATCGCC, what would the sequence of the complimentary strand be?
12. If the codon of an mRNA strand is UGC, the anticodon of the tRNA would be ___________ and the amino acid, ____________, will be added to the growing peptide chain.
13. True or false: In a normal cell, Ras is a continuously active protein that functions in signaling pathways, several of which promote the cell cycle.
14. True or false: Chorionic villi sampling (CVS) is a much safer procedure than amniocentesis because CVS is done later in pregnancy.
15. True or false: Transcriptional control is the most important level of gene control.
16. X-linked recessive disorders often pass from grandfather to granddaughter.
17. True or false: After it is synthesized, mRNA may linger in the nucleus before moving into the cytoplasm.
18. True or false: Two parents are affected with a genetic disorder. They produce an unaffected child. The disorder is likely transmitted as an autosomal dominant trait.
19. True or false: An enhancer region of DNA is adjacent to the promoter.
20. True or false: The only two methods by which fetal cells can be obtained for testing are amniocentesis and chorionic villi sampling.
21. What purpose does a cell-signaling pathway serve in a multicellular organism?
22. True or false: Some genetic mutations can be determined by testing for proteins.
23. True or false: A regulatory gene codes for a protein that activates the genes in an operon.
24. True or false: Cancer cells show a high degree of contact inhibition.
25. The major way in which therapeutic cloning and reproductive cloning differ is what?
26. True or false: Proto-oncogenes may code for growth factors.
27. True or false: Telomerase is highly active in cancer cells.
28. True or false: Angiogensis is not a suspected cause of cancer.
29. True or false: A karyotype can be done using any cell in the body.
30. True or false: An exchange of chromosomal segments between two nonhomologous chromosomes is a/an translocation.
31. In a duplication, a person has more than two alleles for a certain trait.
32. In an autosomal dominant genetic disorder, if both parents have the disorder, what is the chance that their sons will have the disorder?
33. A male has a particular X-linked recessive genetic disorder. His partner is normal, but her father had the disorder. What is the chance that their sons will have the disorder?
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