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- 1. Multiple ChoiceThe process of making mRNA from DNA is called.ReplicationTranscriptionTranslationProtein synthesis
- 2. Multiple ChoiceThe anticodon is located onDNAmRNAtRNArRNA
- 3. Multiple ChoiceChanges in DNA sequences that affect genetic information are known as...ReplicationMutationsTransformationTranslation
- 4. Multiple Choice
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aaAAAaaabrown fur - 5. Multiple ChoiceRed/green color blindness is a recessive sex-linked trait. A woman who is a carrier (XRXr) for this allele marries a normal-vision male (XRY). What is the probability that they will have a child who is color blind?25%50%75%100%
- 6. Multiple ChoiceWhat type of heredity is shown in the pedigree?Autosomal RecessiveSex-LinkedAutosomal Dominant
- 7. Multiple ChoiceThe purpose of selective breeding is toGet bigger animalsget smaller animalscreate animals with desirable traitscreate animals with bad traits
- 8. Multiple ChoiceOne function of gel electrophoresis is toseparate DNA fragmentscut DNArecombine DNAextract DNA
- 9. Multiple ChoiceBased on these results whose blood was found in the blood stain at the crime scene?BobSueJohnLisa
- 10. Multiple ChoiceWhat does GMO stand for?Genetics Modification OrganicsGenetically Modified OrangesGenetically Made OrangesGenetically Modified Organisms
- 11. Multiple ChoiceWhat is recombinant DNA?DNA containing genes foreign to that organismDNA which has been impacted by epigeneticsDNA that has restriction enzymesDNA that has been sequenced
- 12. Multiple ChoiceWhich of these cells would be produced through meiosis?skin cellsliver cellsbrain cellssperm cells
- 13. Multiple ChoiceCrossing over helps promotemale genotypegenetic variationDNA replicationmitosis
- 14. Multiple ChoiceWhy do we need meiosis?To double the number of chromosomes going into sex cellsTo halve the number of chromosomes going into sex cellsTo triple the number of chromosomes going into sex cellsTo not change the number of chromosomes going into sex cells
- 15. Multiple ChoiceA human zygote should have _____ chromosomes inside.46239264
- 16. Multiple ChoiceSB2a. The diagram below shows a pair of DNA nucleotides. The nitrogenous base cytosine (C) is labeled.
Which nitrogenous base pairs with cytosine?adenine (A)guanine (G)thymine (T)uracil (U) - 17. Multiple ChoiceSB2a. Which of the following is found in RNA nucleotides but not in DNA nucleotides?Nitrogen-containing basePhosphate groupRibose sugarDeoxyribose sugar
- 18. Multiple ChoiceSB2b. Which statement about translation is correct?Amino acids are assembled into a protein on the ribosomeRibosomal RNA and transfer RNA form base pairsMessenger RNA is made from DNATransfer RNA contains the genetic code copied from DNA
- 19. Multiple ChoiceSB2b.Which of the following features of DNA is the most important in determining the phenotype of an organism?the direction of the helical twistthe number of deoxyribose sugarsthe sequence of nitrogenous basesthe strength of the hydrogen bonds
- 20. Multiple ChoiceSB2b.
-ACGTAG-
The base sequence of a DNA strand that complements this DNA base sequence is–TGCATC-–ACGTAG-–TGCAUC-–UGCAUC- - 21. Multiple ChoiceSB2c. The diagram below represents division of a cell that produces two daughter cells. When new cells are formed through the process of mitosis, the number of chromosomes in the new cellsincreases every time the cell divides.remains the same as in the parent cell.decreases every time the cell divides.is half of that of the parent cell.
- 22. Multiple ChoiceSB2c. A scientist is trying to discover a new treatment to stop lung cancer cells from dividing. In the cancer cells, which of these processes will stop if the treatment is successful?mitosismeiosisbinary fissiongenetic recombination
- 23. Multiple ChoiceSB2c. What you see, or the physical appearance.GenotypePhenotypeHomozygousHeterozygous
- 24. Multiple ChoiceSB2c. Specialized cells in the humans undergo a process that produces gametes. What is this process called?binary fissionmeiosisfertilizationenzyme regulation
- 25. Multiple ChoiceSB2c. When gametes are produced from a parent cell during normal meiosis, which of the following describes the number of chromosomes in each resulting cell?Each resulting cell has the same number of chromosomes as the parent cell.Each resulting cell has twice the number of chromosomes as the parent cell.Each resulting cell has one-half the number of chromosomes as the parent cell.Each resulting cell has one-fourth the number of chromosomes as the parent cell.
- 26. Multiple ChoiceSB2d. A mutation is least likely to affect a cell when the mutation:reverses the order of bases in a DNA strandallows the total number of bases in a DNA sequence to remain the samreplaces a base with its complementary baseproduces a triplet that codes for the same amino acid as the original triple
- 27. Multiple ChoiceSB2d. The original mRNA strand has 3 triplets:
AUG-AUU-CAC
Which of the following mutations causes the LEAST amount of harm to the cell?AUG-AUC-ACAUU-AUU-CACAUG-AUC-CACAUG-CAU-UCA-C - 28. Multiple ChoiceSB2d. 12.The following diagram shows a mutation that occurs in the hemoglobin gene to produce a recessive genetic disorder called sickle cell anemia.
Which of the following statements best describes why the change in only one DNA base of the hemoglobin gene results in a different protein product of the gene?the change prevents mRNA from being madethe change alters the amino acid sequence of the proteinthe change causes the blood cells to divide in an uncontrolled waythe change creates a second strand of mRNA for each RNA molecule - 29. Multiple ChoiceA cross of a red cow with a white bull produces all road offspring. This type of inheritance is known ascodominanceincomplete dominancemultiple alleles"breed time:
- 30. Multiple ChoiceA woman with blood genotype I(A)i marries a man with blood genotype I(B)i. What is the probability that they would have a child with type O blood?1/11/21/31/4
- 31. Multiple ChoiceIn certain rats, black fur is dominant over white fur. If two rats, both heterozygous for fur color are mated, their offspring would be expected to havefour different genotypes and two different colorstwo different genotypes and three different colorsthree different genotypes and two different colorsthree different genotypes and three different colors
- 32. Multiple ChoiceBased on the Karyotype shown, at which chromosome pair can we identify a genetic disorder?Chromosome pair 5sex chromosomesChromosome pair 21There are no chromosomal disorders
- 33. Multiple ChoiceWhich sex chromosomes would indicate a typical human male?XXXXYXXY
- 34. Multiple ChoiceSB2a. Which of the following are the main components of a DNA nucleotide?Ribose-sugar, phosphate, nitrogen baseDeoxyribose-sugar, nitrogen base, phosphorousDeoxyribose-sugar, phosphate, nitrogen baseGlucose, nitrogen base, phosphate
- 35. Multiple ChoiceIn mitosis, the two resulting cells aredifferent from the starting cell and identical to each other.different from the starting cell and different from each other.identical to the starting cell and different from each other.identical to the starting cell and identical to each other.
- 36. Multiple ChoiceThe time between cell divisions in the life cycle of the cell is calledanaphaseinterphaseprophasemetaphase
- 37. Multiple ChoiceIf a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain361224
- 38. Multiple ChoiceCytokinesis is a process that occurs during the cell cycle. During cytokinesis,the cytoplasm is divided to form two separate cells.the cell grows and performs normal life processes.the chromosomes of the cell are duplicated.the nuclear material of the cell is divided.
- 39. Multiple ChoiceMitosis and meiosis are methods of cell division.
Which of the following is true of these two methods?Mitosis involves only one division, while meiosis involves two divisions.Meiosis involves one division, while mitosis involves two divisions.Meiosis involves two or more divisions, while mitosis involves exactly two divisions.Mitosis involves two or more divisions, while meiosis involves exactly two divisions. - 40. Multiple ChoiceWhich RNA bases would pair with TACGAA in transcription?AUGCUUATGCTTGCATCCGCAUCC
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