1. An enzyme that functions in the linking of nucleotides and stitching together of new strands for transcription. A. RNA polymerase B. DNA polymerase C. DNA helicase Both A and B Both B and C None

Please don’t cancel the question. Can I get some help. Thank you

please answer and explain thoroughly!!!

Answer the 2 questions

1. A patient has a mutated BRCA2 gene and a normal BRCA1 gene. Select the TWO answers that are correct. The patient has an increased risk of developing ovarian or breast cancer than a patient with normal BRCA1 and BRCA2 genes. The patient has a lesser risk of developing ovarian or breast cancer than a patient with normal BRCA1 and BRCA2 genes. The patient has a lesser risk of developing ovarian or breast cancer than a patient with a normal BRCA2 gene and a mutated BRCA1 gene. The patient has a greater risk of developing ovarian cancer and a lesser risk of developing breast cancer than a patient with normal BRCA1 and BRCA2 genes. The patient has a greater risk of developing breast cancer and a lesser risk of developing ovarian cancer than a patient with normal BRCA1 and BRCA2 genes.

Answer these practical questions

I Review Lesch-Nyhan syndrome (OMIM 300322) is a rare X-linked recessive disorder that produces severe mental retardation, spastic cerebral palsy, and self- mutilation. Part A What is the probability that the first son of a woman whose brother has Lesch-Nyhan syndrome will be affected? Express your answer as a fraction (example 1/16). Submit Request Answer Part B If the first son of the woman described in (a) is affected, what is the probability that her second son is affected? Express your answer as a fraction (example 1/16). Submit Request Answer

please help using the Hardy weinberg equation

20. The pedigree to the right shows the results of SSR genotyping of a family. The grandmother is affected with a fully penetrant, adult onset autosomal disease. The exact genetic lesion is not known, but it has been 22 mapped to be 4 centimorgans from the genotyping SSR. What is the likelihood that Child B will suffer from the disease? 13 12 32 a. 2% b. 4% C. 48% d. 50% 12 32 A B

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