On the planet Schtor, in the Andromeda galaxy, there is a creature known as the
ID: 277545 • Letter: O
Question
On the planet Schtor, in the Andromeda galaxy, there is a creature known as the mouchee with biological systems identical to those of earth fruit flies. In the mouchee population there is a rare phenotype, Agua, in which mouchee enjoy river-boat cruises. Given the alleles + (wild-type) and A (trait) at the Agua locus, there has been no record of a mouchee with an AA genotype ever being observed.
If a female who is heterozygous at the Agua locus is mated with a true-breeding (wild-type) male, and they produce 1000 F1offspring in the following counts:
253 river-boat cruise loving females;
251 females who do not love river-boat cruises;
247 river-boat cruise loving males;
249 males who do not love river-boat cruises;
What is the most likely mode of inheritance for the Agua gene?
A. Autosomal-recessive, homozygous lethal.
B. There are two loci that explain the mode of inheritance.
C. Autosomal-dominant, homozygous lethal.
D. X-linked recessive.
E. X-linked dominant, homozygous lethal.
Explanation / Answer
The most likely mode of inheritance for the Agua gene is an autosomal -dominant ,homozygus lethal.
In autosomal dominant the traits can be passed down through families.
homozygous lethal where a pair of identical alleles that are present in organism ultimately results in death of organism.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.