Answer the following statements true (T) or false (F)
1. When Ron Evans generated transgenic mice in which the gene PPAR-delta was constitutively active (i.e., always expressed), he found that these mice showed a shift from fast glycolytic fibers to slow oxidative fibers. Based on this, faster sprint speeds in the transgenic mice would also be predicted.
2. The fact that a quarterback can throw a football at approximately 50 miles per hour means that the muscles powering this throw must also be shortening at 50 miles per hour.
3. Walking or running are more energetically expensive forms of locomotion than either swimming or flying.
4. The only chyme molecule that is absorbed in significant amounts by the stomach is water.
1. FALSE
2. FALSE
3. TRUE
4. TRUE
You might also like to view...
Which of the following statements about con transport of solutes across a membrane is correct?
a. cotransport proteins allow a single ATP-powered pump to drive the active transport of many different solutes b. in cotransport, both solutes that are being transported are moving down their chemical gradients c. The sodium-potassium pump is an example of a cotransport protein d. cotransport involves the hydrolysis of ATP by the transporting protein e. a cotransport protein is most c
The occurrence of which of the following events would indicate that a population was not in Hardy-Weinberg equilibrium? a. Mating is random
b. All individuals survive and produce the same number of offspring. c. No gene flow occurs between the population and others of that species. d. Mutations are rare.
You are a biologist for a new fruit and fiber company. Your job description is to devise several ways to lower the THC level in Cannabis sativa. With lower THC levels your CEO sees a vast expanding market for hemp products. Explain at least three approaches to achieve your goal
What will be an ideal response?
The genotypic F2 ratio expected in a dihybrid cross is 9:3:3:1
Indicate whether the statement is true or false