BIS 2A OLI QUESTIONS
A. unsaturated fatty acids are hydrogenated in the lab to produce saturated fatty acids
B. saturated fatty acids are hydrogenated in the lab to produce unsaturated fatty acids
C. plants produce saturated fatty acids
D. animals produce unsaturated fatty acids
A. the ratio of saturated to unsaturated fatty acids
B. the cholesterol content
C. the presence of integral proteins in the membrane
D. interactions among fatty acids in the core of the bilayer
A. a large fatty acid
B. a steroid hormone
D. a sodium ion
E. a large peptide hormone
A. 0.9% NaCl is hypertonic to the cells.
B. 0.9% NaCl is iostonic to the cells.
C. Sodium blocks the movement of water.
D. 0.9% NaCl is hypotonic to the cells.
E. water has not moved at all.
A. large polar molecules
B. positively charged ions
C. small hydrophobic molecules
A. help maintain fluidity
B. cellular identification
D. transport materials across the membrane
A. This allows the cell to maintain the proper shape.
B. This allows the cell to regulate what enters and exits
C. This allows the cell to maintain a constant temperature.
D. All of these
A. G1- the cell is growing and increasing its mass
B. M- the cell is undergoing mitosis
C. G2- the cell is preparing to divide
D. S- the cell is dividing
E. G0- the cell is mature and does not cycle anymore.
A. Four genetically identical cells
B. Two genetically identical cells
C. Two genetically unique cells
D. Four genetically unique cells
A. Mitosis must have happened twice!!
B. Cytokinesis occurred without mitosis!
C. Mitosis occurred without cytokinesis!
D. The cell remained in interphase continuously!
A. Replacement of dysfunctional cells
B. Production of sperm or eggs
C. Cell growth
A. A disregulation of the cell cycle.
B. A non-functional tumor suppressor gene and a non-functional proto-oncogene.
C. A functional tumor suppressor gene and a functional proto-oncogene.
D. Exposure to a carcinogen.
A. gametes, somatic cells
B. gametes, gametes
C. somatic cells, gametes
D. somatic cells, somatic cells
A. All these answers could be true.
B. One gamete had 2 copies of chromosome 21 and the other gamete had 1 copy.
C. None of these answers could be true.
D. The egg could have had 2 copies of chromosome 21.
E. The sperm could have had 2 copies of chromosome 21.
A. diploid, diploid
B. diploid, haploid
C. haploid, haploid
D. haploid, diploid
A. All other selections are true.
B. Sexual reproduction provides more genetic variability
C. Sexual reproduction is more efficient
D. Sexual reproduction doubles the number of chromosomes in a species
A. To allow for growth
B. To enable an organism to produce gametes
C. To allow an organism to replace damaged cells
A. Replacement of dysfunctional cells
B. Cell growth
C. Production of sperm or eggs
A. Prophase I of meiosis
B. Prophase of mitosis
D. Prophase II of meiosis
A. Anaphase I of meiosis
B. Anaphase II of meiosis
C. Metaphase I of meiosis
D. Anaphase of mitosis
A. must be homozygous
B. must be heterozygous
C. can be either homozygous or heterozygous
A. Phenotype is to protein as DNA is to genotype.
B. Protein is to genotype as DNA is to phenotype.
C. Protein is to phenotype as DNA is to genotype.
D. Protein is to phenotype as genotype is to DNA.
A. They are more common in a population.
B. They are expressed in both homozygous and heterozygous individuals.
C. They are evolutionarily favorable.
D. They are expressed only in homozygous dominant individuals
A. Metaphase I
B. Metaphase II
C. Telophase I
D. Telophase II
A. Anaphase I
B. Anaphase II
C. Prophase I
D. Prophase II
A. have related phenotypes
B. are alleles of each other
C. sort independently of each other
D. are found on the same chromosome
A. either have the dominant or the recessive allele
B. only have the recessive allele
C. only have the dominant allele
D. have both the dominant or the recessive allele
A. No, the backbones will be different in each cell type.
B. Yes, the backbones of DNA are different for each person, but within the organism – they are the same in all cells.
C. No, the backbones will be different because of mutations.
D. Yes, all backbones of ALL DNA molecules are the same.
A. DNA tends to be double stranded, while RNA tends to be single stranded
B. RNA uses the base thymine while DNA uses the base uracil.
C. DNA uses the sugar deoxyribose while RNA uses the sugar ribose.
D. All of these are differences between DNA and RNA.
C. both polar and nonpolar
D. neither polar nor nonpolar
A. olive oil
B. food coloring
C. table salt
A. All of these macromolecules are used for energy storage.
E. None these macromolecules are used for energy storage.
-Nucleotides, lipids, carbohydrates
A. Two DNA molecules each both have two new strands.
B. Two DNA molecules which each have one old strand and one new strand.
C. Two DNA molecules one with two old strands and one with two new strands.
D. Two DNA molecules which each have two new strands and two old strands.
A. Both DNA replication and PCR use a DNA template.
B. Both DNA replication and PCR use DNA polymerase.
C. Both DNA replication and PCR use helicase.
D. Both DNA replication and PCR use primers.
B. Phosphate group
C. Nitrogen base
A. Gene Expression
B. DNA Mutation
C. DNA Replication
D. Base Titration
A. The normal A-T base pairing uses 3 hydrogen bonds, so it will be preferred.
B. DNA polymerase cannot incorporate T into the newly synthesized strands.
C. The T-T basepair contains two of the smaller sized bases.
D. The two T-T hydrogen bonds will be weaker than the two hydrogen bonds between an A-T pair.
A. Yes, the sequence of ALL DNA is the same.
B. No, some cells will have mom’s DNA, other cells will have dad’s DNA.
C. No, the DNA sequence will vary based on cell type.
D. Yes, the sequence of bases should be the same in all cells of an organism.
A. Neither would be radioactive because DNA polymerase can distinguish between isotopes.
B. One bacteria would be radioactive and the other not.
C. Both bacteria would be equally radioactive.
A. mRNA moves a protein to the DNA and makes a copy of the DNA through translation.
B. DNA makes a copy of itself which is transported from the nucleus to the cytoplasm by a chain of amino acids.
C. Transcription produces an mRNA molecule in the nucleus. The mRNA moves to the cytoplasm where translation occurs.
D. Translation produces a tRNA molecule in the nucleus; the tRNA transports a protein to the cytoplasm of the cell.
B. DNA replication
A. All three processes happen in the cell naturally.
B. Both DNA replication and PCR use DNA polymerases.
C. All three processes require primers.
D. All three processes result in a double stranded product.
D. all of these
A. a missense mutation at the 490th codon
B. a missense mutation at the fifth codon
C. a nonsense mutation at the 490th codon
D. a nonsense mutation at the fifth codon
A. Proteins from an RNA template
B. DNA from a DNA template
C. RNA from a DNA template
D. Proteins from a DNA template
A. A polypeptide that has a different amino acid at position 6.
B. A polypeptide that has the correct amino acids for the first 5 position, and then incorrect amino acids after that.
C. A polypeptide that is 5 amino acids long.
D. A polypeptide that is missing the 6th amino acid.
A. G2 phase
B. S phase
C. M phase
D. G0 phase
E. G1 phase
A. Only in Prokaryotic
B. Only in Eukaryotic
C. Both prokaryotic and eukaryotic cells.
A. The repressor protein to bind to the operator, allowing transcription.
B. The repressor protein to bind to the operator, preventing transcription.
C. The repressor protein released from the operator, preventing transcription.
D. The repressor protein released from the operator, allowing transcription.
A. Changes in gene expression due to increased production of a hormone.
B. Changes in DNA packaging leading to gene silencing.
C. Changes in DNA sequence due to exposure to radiation.
D. None of the above, they are all heritable changes.
C. Both prokaryotic and eukaryotic cells.
A. to transcribe DNA to mRNA for the structural genes in the operator.
B. It increases the binding of lactose to the lac repressor, causing it to be released from the operator.
C. It enhances the binding of RNA polymerase to the lac operon, increasing transcription
D. It bumps the lac repressor off the DNA, allowing transcription of the genes for lactose metabolism.
A. It’s a protein that promotes transcription
B. It’s a region of DNA that binds DNA polymerase to begin replication.
C. It’s a region of DNA that binds RNA polymerase to begin transcription
D. It’s a region of RNA that binds ribosome to begin protein synthesis.
A. repressor proteins
B. DNA helicases
C. RNA polymerases
A. mutations accumulated in the regulatory region of the gene that code for lactose metabolizing enzymes.
B. Changing the behavior of a DNA binding protein that regulates expression of these genes.
C. Uncondensing of the DNA, to allow for expression of the genes.
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