Here is more Biology homework that I could really use help with. I appreciate all of the help I have been given in this class so far. I wish that I had a firm enough grasp of Biology to help others with their questions, but I am afraid that to try and do so would do the questioner more harm than good. And I stay broke, so I have no money to give (that is also why I do not just try to hire a tutor to help me in this class). If there is another way that I can pay it forward, please email me and let me know. I would be happy to help anyone if I could. Thanks again everyone.
Question 1
"Wild type" refers to ______________.
A. the most common phenotype in the natural population
B. any mutant genotype
C. a kind of chromosome deletion
D. the most extreme mutant phenotype observed in an experiment
E. extranuclear genes
Question 2
A person with two X chromosomes and one Y chromosome would appear to be _________________.
A. female
B. male
C. neither male nor female
D. both male and female
E. any of the above, depending on the number of other chromosomes
Question 3
The exchange of segments between nonhomologous chromosomes is called _________________.
A. translocation
B. transformation
C. transduction
D. inversion
E. duplication
Question 4 text
Which type of chromosomal alteration is responsible for the disorder "cri du chat"?
A. translocation
B. duplication
C. inversion
D. deletion
E. genetic imprinting
Question 5
If two genes are linked, _____________.
A. they assort independently
B. they are on different chromosomes
C. they are on sex chromosomes
D. they code for the same protein
E. they are on the same chromosome
Question 6
Fruit flies are a useful organism for genetic studies for all of the following reasons EXCEPT _____________.
A. Fruit fly chromosomes can be easily distinguishable under a light microscope.
B. A single mating can produce many offspring.
C. They have a small number of chromosomes.
D. They have a long generation time.
E. All of the above.
Question 7
Cells that have more than two complete sets of chromosomes are termed __________________.
A. diploid
B. nanoploid
C. trisomy
D. aneuploid
E. polyploid
Question 8
In an X-linked, or sex-linked trait it is the contribution of _____________ that determines whether a son will display the trait.
A. the paternal grandmother
B. the mother
C. the father
D. the paternal grandfather
E. none of the above
Question 9
A linkage map ______________.
A. orders genes on a chromosome based on recombination frequencies
B. orders genes on a chromosome based on their location with respect to a stained band
C. shows the ordering and exact spacing of genes on a chromosome
D. predicts the probability that you will have a male or female child
E. can be constructed only for sex chromosomes
Question 10
What is the probability that a male will inherit a X-linked recessive allele from his father?
A. 25%
B. 100%
C. 75%
D. 50%
E. 0%
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