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A bacterial gene is known to spontaneously mutate at a high frequency. A study of one mutant gene product shows that the mutant protein made is shorter than the wildtype protein by four amino acids. The wildtype gene has been cloned and sequenced. It has a region of repeated sequences that code alternately for proline and threonine (see below).Met Pro Thr Pro Thr ..........5'...ATG.........CCC ACG CCC ACG CCC ACG CCC ACG CCC ACG.......TGA....3'a) Clearly explain, using diagrams, how a deletion of four codons could occur in this region and be passed on to progeny.b) Is an insertion of four codons possible? Is an insertion of five codons possible? Explain why or why not in each case
The population of two hundred individuals goes through a generation of reproduction in which all HWE assumptions are met except for finite population size.
Discuss how does the change in heart rate during deep inhalation compare to the change in heart rate during normal inhalation?
If you did a three-point test cross with genes A, B and C, and only genes A and B were linked, what recombinant frequencies would you see for the 3 pairs of genes, AB, AC, and BC
Review the feedback mechanisms that maintain homeostasis and what happens when these systems do not function appropriately. Give two specific examples for each.
In surgery, a surgeon pulls a loop of bowel through a 4.2 inch incision in linea alba and inspected the surface. There were smally fatty appendages hanging around length of piece of bowel.
Using your knowledge of development, genetics, and biology, explain a possible reason why males and females have a different TRC.
E.coli and S.epidermidis were chosen to represent Gram-negative and Gram-positive bacteria, respectively. For a given antibiotic, is there a difference in susceptibility between the Gram-positive and Gram-negative bacteria?
Martha is maintaining her current weight by eating 2,500 kcalories per day. To lose 1 pound of fat per week, she would have to decrease her intake to how several kcalories per day. Considering the albedo of various surfaces how might temperatures var..
Early formulations of this medium used a smaller amount of carbohydrate and occasionally prodused false alkaline result after 48 hours. Why do you think this happened.
Cystic fibrosis (CF) is a recessive trait that causes a fatal lung disorder, with symptoms beginning in early childhood. A healthy woman whose brother has CF marries a healthy man who has a sister with CF. What is the probability that their first ..
An inversion heterozygote possesses a normal chromosome and one with an inversion. The gene orders in these 2 chromosomes are shown below- Normal 1 2 3 4 5 6 7 8 9 10 o.
The sickle cell allele remains quite high populations of those with African Ancestry, and worldwide distribution of the sickle cell gene matches very closely to the worldwide distribution of Malaria.
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