In some wolves, L and l are two alleles for tail length. Wolfs that are ll have short tails, Ll have long tails and LL are never seen (they die before birth).If you cross long-tailed wolfs, what proportion of the offspring will have a long tail?Group of answer choices3/41/32/3
Question
In some wolves, L and l are two alleles for tail length. Wolfs that are ll have short tails, Ll have long tails and LL are never seen (they die before birth).If you cross long-tailed wolfs, what proportion of the offspring will have a long tail?Group of answer choices3/41/32/3
Solution
The question is about genetics and the concept of dominant and recessive alleles. In this case, L is dominant and l is recessive. However, the homozygous dominant (LL) is lethal.
When you cross two long-tailed wolves (Ll x Ll), you get the following combinations:
- LL (which is lethal and therefore not seen)
- Ll (long tail)
- lL (also long tail due to dominance)
- ll (short tail)
So, out of the viable combinations (those that do not result in death before birth), 2 out of 3 will have long tails. Therefore, the proportion of offspring that will have a long tail is 2/3.
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