Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. T
he diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis?
Affected: RR Normal: rr
A: 0%
B: 25%
C: 50%
D: 100%
Affected: RR Normal: rr
A: 0%
B: 25%
C: 50%
D: 100%
2 answers:
As you can see in a cross shown in the image below, all of the progeny would have the Rr genotype.
Since the NF1 gene that is the genetic causes of Neurofibromatosis is expressing <span>an autosomal dominant pattern of inheritance, the heterozygotes would also have the disease.
Therefore, the correct answer is D, 100%.</span>
Since the NF1 gene that is the genetic causes of Neurofibromatosis is expressing <span>an autosomal dominant pattern of inheritance, the heterozygotes would also have the disease.
Therefore, the correct answer is D, 100%.</span>
You might be interested in
<u>Answer</u>: Option D. RNA polymerase.
<u>Explanation</u>:
- Transcription is the process which is used to produce RNA from a DNA template.
- The enzyme involved in the process of transcription is <em>RNA</em> <em>polymerase</em> which is responsible for separating the DNA strands and making an RNA which is complementary to the DNA.
- RNA polymerase joins the nucleotides in the newly formed RNA strands by utilizing the energy released from the cleavage of the additional phosphate bonds that are removed by it.
- The RNA polymerase dissociates from the DNA only after the process of transcription is complete.
Attached is an image with the correct labeling.
