BIOL133 Week 12 Exam 3- Chapters 12-15; Cover Four Chapters
Course : American Public
Contributed : May Anderson
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- Question: Combination of alleles that independently assort is usually higher than the number of chromosomes because
- Question: If a family has a child with Down syndrome (trisomy-21), then one of the siblings must be monosomic for chromosome 21.
- Question: If genes are completely linked, all the offspring will be _.
- Question: An organism with nonfunctioning telomerase
- Question: Which direction is the template DNA read by the RNA polymerase?
- Question: Low pitched male voices (RR) and a high pitched male voice (rr). Heterozygotes have a baritone voice. This is an example of .
- Question: Due to a random error by the aminoacyl tRNA synthetase, a tRNAVal was misloaded with Ile. What do you predict will result?
- Question: Why are hydrogen bonds holding DNA bases together instead of covalent bonds?
- Question: Prokaryotes are able to perform transcription and translation at the same time because they lack
- Question: Low pitched male voices (RR) and a high pitched male voice (rr). Heterozygotes have a baritone voice. This is an example of .
- Question: A child contains what proportion of their parent’s genetic makeup?
- Question: If a DNA sample from an unknown organism has telomerase, the organism
- Question: What type of enzyme cuts the pre-mRNA between the AAUAAA consensus sequence and a GU- rich sequence?
- Question: Nondisjunction during meiosis I will result in .
- Question: The type(s) of RNA that are directly involved in translation are which of the following. Select all that apply
- Question: What best describes the difference between paracentric and pericentric inversion?
- Question: The allele for widows peak (H) is dominant for the allele for no widows peak (h). At a different gene locus, the allele for hitchhikers thumb (D) is dominant to the allele for non-hitchhikers thumb (d). A man is heterozygote for the traits and marries a woman who has no widows peak and is heterozygote for hitchhikers thumb. What is the man’s genotype?
- Question: Some scientists have proposed that the earliest forms of life may have existed in an “RNA World” where RNA was both the genetic material and responsible for enzymatic activity. Imagine that you have recreated such a life form. What would demonstrate that RNA, but not protein or DNA, is necessary and sufficient for these functions?
- Question: For her science fair project, your little sister replicated one of Mendel’s experiments. From a P0 pea plant with purple flowers and a pea plant with white flowers, she got 1 purple F1 hybrid (she had forgotten to water, so just one survived). From this self-fertilized F1 she got 8 F2 offspring. 7 were purple and 1 was white, for a 7:1 ratio. Did your little sister just disprove Mendel’s laws?
- Question: Nondisjunction during meiosis II will result in .
- Question: What causes RNA polymerase to stall so that the rho protein bumps into it and knocks it off the DNA?
- Question: Due to a random error by the aminoacyl tRNA synthetase, a tRNAVal was misloaded with Ile. What do you predict will result?
- Question: ____ unwinds the helix during replication.
- Question: Serious disease syndromes are associated with trisomy of chromosome 21 (Down syndrome), 18 (Edwards syndrome) and 13 (Patau syndrome). What is the result of trisomy of the other chromosomes?
- Question: Mature tRNA has an amino acid binding site at one end and the other end interacts with the mRNA by complementary base pairing due to the .
- Question: What is the process of ribosomes making proteins?
- Question: There are a number of unique features to eukaryotic pre-mRNA splicing. Select all that apply.
- Question: A mutation causes a codon to change from UAC to UAU, both of which specify tyrosine. This is an example of
- Question: The most common time individual assortment occurs is when genes are ?
- Question: What is a major difference between DNA polymerase I and DNA polymerase III?
- Question: Telomerase uses an internal RNA template composed of a repeated sequence complementary to the RNA template. These help lengthen the telomeres.
- Question: ____ found in the -10 sequence makes it easier for the DNA to separate.
- Question: Why did Mendel’s work go unnoticed?
- Question: If genes are completely linked, all the offspring will be .
- Question: A mutation changing an alanine to a glycine would likely have little effect on the protein function since they are both small, ____ , amino acids.
- Question: What is the correct order of DNA compaction in eukaryotes?
- Question: Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic ratio?
- Question: Your labmate’s ligation reaction didn’t work. The regular ATP had run out, so he fueled the reaction with dATP from the PCR kit. What advice can you give him?
- Question: What best describes the human karyotype?
- Question: Seed texture, plant height, pea pod color are all considered ____ ?
