Biology question 1. To discover the location of a genetic mutation that causes d
ID: 63068 • Letter: B
Question
Biology question
1. To discover the location of a genetic mutation that causes disease in humans, scientists use genetic mapping. Specifically, they look for genetic markers, or previously discovered ____________, that show statistical association with the disease gene.
2. What is the limit on how far apart two genes can be on the same chromosome?
a. 25 map units (mu)
b. 100 mu
c. 50 mu
d. The value depends on the chromosome in question.
e. 75 mu
1. To discover the location of a genetic mutation that causes disease in humans, scientists use genetic mapping. Specifically, they look for genetic markers, or previously discovered ____________, that show statistical association with the disease gene.
2. What is the limit on how far apart two genes can be on the same chromosome?
a. 25 map units (mu)
b. 100 mu
c. 50 mu
d. The value depends on the chromosome in question.
e. 75 mu
Explanation / Answer
Answer 1: Banding patterns.
The chromosomes have a unique banding pattern. These can tell if there is any mutation in the chromosomes, whether any part is missing or present in excess amount. Thus, it can be chromosome banding patterns.
Answer 2: Option C 50 mu
This is the upper limit for the distance between two genes. This is relative to the maximum rate of recombination that can take place between two genes present on the same chromosome. Recombination is related to distance between two genes. There can't be recombination frequency more than 50%.
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