#Question id: 21390
#Unit 12. Applied Biology
#Question id: 4820
#Unit 8. Inheritance Biology
Which of the following gametes are produced in grater proportional by an individual of genotype Ab/aB if the genes are in the same chromosome with some recombination between them?
#Question id: 5812
#Unit 8. Inheritance Biology
In which situation would you expect the mutation frequency to increase over time?
#Question id: 7206
#Unit 5. Developmental Biology
Which of the following statements explains the dominant mutation of Pmar1 results in a vegetalized embryo is due to:
#Question id: 2838
#Unit 2. Cellular Organization
You want to study the potential interaction between nucleosome-bound DNA and a specific histone deacetylase. You decide to perform an electrophoretic mobility shift assay (EMSA). You use a 32P end-labelled, linear template DNA that contains two nucleosome positioning sites. You assemble two nucleosomes on the DNA template before incubation with and without the histone deacetylase. For some reactions, you use unmodified nucleosomes. For other reactions, you use nucleosomes that are methylated at lysine 36 of the histone protein H3.
A. The histone deacetylase binds nucleosome bound-DNA in lanes 1, 2, 3, and 4.
B. The histone deacetylase binds nucleosome bound-DNA in lanes 3& 4.
C. The histone deacetylase seems to recognize methylated nucleosomes at lysine 36 of histone H3 in lane 1, 2 & 3 better than unmethylated nucleosomes in lane 4 &5
D. The histone deacetylase seems to recognize methylated nucleosomes at lysine 36 of histone H3 in lane 1 & 2 better than unmethylated nucleosomes in lane 3 &4