Proteins and a properly working digestive system
Answer: 1) a. decrease 2) b. increase
Explanation: 1) If the rabbit population declined and it is the main source of food for the lynx, the lynx population would decrease because it wouldn’t have enough to eat. 2) Since the lynx is a predator of rabbits, but all the lynx were killed then the rabbit population would increase because they aren’t being eaten.
One hypothesis that explains the result is : A) Two genes are involved with 12:3:1 epistasis, such that A_B_ and A_bb are black, aaB_ is brown,and aabb is green.
Explanation:
- This is a case of Dominant Epistasis.
- When two genes are involved and presence of dominant allele of one gene masks the effect of either allele of the second gene then the epistasis is termed as dominant epistasis.
- In the given case black :brown: green ratio is approximately equal to 12:3:1.
- Here presence of a dominant A allele that is responsible for the black colour masks the effect of either allele of B. Therefore A_B_ and A_bb produces black beetles
- Again , absence of dominant A allows B to express itself and Brown beetles are produced thus aaB_ is brown.
- When both the genes are present as recessive alleles, neither brown nor black colour is expressed and the beetles are green.Thus, aabb are green.
<u>Complete question:</u>
Eye color in certain cat species is determined by a gene with multiple alleles. Brown eyes (CW) are dominant to green eyes (CN) which are dominant to grey eyes (CY) which are dominant to blue eyes (CB).
A. <em>List all the possible genotypes of a brown-eyed cat.</em>
B. <em>List all the possible genotypes of a grey-eyed cat.</em><em> </em>
C. Show the chances of obtaining a green-eyed cat from the cross
<u>Answer and Explanation:</u>
You will find the complete answer and explanation in the attached file due to technical problems.
Answer:
The correct answer is - 9:3:3:1
Explanation:
A cross between pure yellow round seeds(AARR) to another pure green shrunken seeds (aarr). In the F1 generation, all offsprings are heterozygous yellow round(YyrRr).
Now this heterozygous self-pollination, in the F2 generation, 9 plants are Yellow round, 3 plants are yellow shrunken, 3 plants are green round and 1 plant is green wrinkled are formed.
YR Yr yR yr
YR YYRR YYRr YyRR YyRr
