Which of the following best explains the banding patterns exhibited in Figure 4

5.The restriction endonuclease Mst II recognizes the sequence 5' CCT(N)AG (where N = any nucleotide) and cutsDNA at that site, producing separate fragments. Which of the following best explains the banding patternsexhibited in Figure 4?a.The HbA DNA contains a recognition site for the Mst II restriction enzyme.b.The HbA/HbS DNA contains three recognition sites for the Mst II restriction endonuclease.c.Individual I has only one copy of the hemoglobin gene; therefore there is only one band on the gel.d.The HbS/HbA DNA contains three different alleles for sickle‐cell disease.

AP Biology Exam Review6.The figure to the right depicts the DNA‐protein complexthat is assembled at the transcriptional start site of gene Xwhen the expression of gene X is activated in liver cells.Previous studies have shown that gene X is neverexpressed in nerve cells. Based on the diagram, which ofthe following most likely contributes to the specificexpression pattern of gene X?

7.Lactose digestion in E. coli begins with its hydrolysis by the enzyme b‐galactosidase. The gene encoding b‐galactosidase, lacZ, is part of a coordinately regulated operon containing other genes required for lactoseutilization.Which of the following figures correctly depicts the interactions at the lac operon when lactose is NOT beingutilized? (The legend below defines the shapes of the molecules illustrated in the options.)

AP Biology Exam Review8.Mutations in the MYO6 and POU4F3 genes have been associated with a form of hereditary hearing loss inhumans. Researchers studying the genes have proposed that POU4F3 encodes a transcription factor thatinfluences the regulation of MYO6.Which of the following questions will best help guide the researchers toward a direct test of their proposal?a.Have mutations in other genes also been associated with hearing loss?b.In what types of cells are the mutant forms of the POU4F3 gene expressed?c.Are mutations in the MYO6 and POU4F3 genes also found in mice?d.Do mutations in the POU4F3 gene affect MYO6 mRNA levels in cells?

Hole's Human Anatomy and Physiology

13th EditionDavid N. Shier, Jackie L. Butler, Ricki Lewis

1,402 solutions

Clinical Reasoning Cases in Nursing

7th EditionJulie S Snyder, Mariann M Harding

2,512 solutions

Human Resource Management

15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine

249 solutions

Biology

1st EditionKenneth R. Miller, Levine

2,591 solutions

Hole's Human Anatomy and Physiology

13th EditionDavid N. Shier, Jackie L. Butler, Ricki Lewis

1,402 solutions

Human Resource Management

15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine

249 solutions

Human Resource Management

15th EditionJohn David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine

249 solutions

Clinical Reasoning Cases in Nursing

7th EditionJulie S Snyder, Mariann M Harding

2,512 solutions

Which of the following best explains how the gene encoding cholera toxin?

Lysogenic bacteria phages- which of the following best explains how the gene encoding the cholera toxin becomes part of the bacterial genome? The bacteriophage inserts the toxin gene into the host cell DNA, and the gene is expressed with the rest of the host cell's genes.

Which of the following is the best justification for why the rabbit hemoglobin?

Which of the following is the best justification for why the rabbit hemoglobin proteins were found throughout the tadpole? The mRNA injected into the newly fertilized frog eggs is distributed in the cytoplasm of every daughter cell during cell division.