Biology, 10.05.2021 01:50 zalliagessnerp5fuj9
DIRAS3 is a paternally expressed and maternally imprinted gene located on chromosome 1 in humans. Reduced DIRAS3 expression is linked to an increased risk of breast and ovarian cancers the protein encoded by DIRAS3 is not expressed, suggesting that it functions
as a tumor suppressor gene. The protein it codes for, ARHI, influences the cell cycle. Specifically
ARHI's strong inhibition of the cyclin D1 promoter.
a. Assume the couple below is totally healthy but has 3 children, 2 of which have developed cancer
by the age of 27.
Fill in the probable genotypes of the parents below.
b. Identify what percentage of their children are likely to get cancer.
c. How would the above results be different if the genotypes were reversed?
d. now, explain why DIRAS3 mutations are likely to cause cancer
Answers: 2
Biology, 22.06.2019 03:30, weisenbergertay5779
What is the most appropriate method of gaining weight (muscle mass)
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Biology, 22.06.2019 09:10, dmarte11092001
Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.
Answers: 2
DIRAS3 is a paternally expressed and maternally imprinted gene located on chromosome 1 in humans. Re...
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