An inactivated X chromosome is called a(n) ____
a. Barr body
b. polar body
c. SRY body
d. linked chromosome
e. linked body
ANSWER: a
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In science, all results
a. are accepted as fact. b. are only hypotheses. c. have a probability of being incorrect. d. must be consistent with previous knowledge. e. are uncritically accepted by other scientists
This image represents:
1.sister chromatids
2.a duplicated chromosome
3.two alleles
4.homologous chromosomes
During an experiment, what is the purpose of a control group?
a. To verify data b. To disprove the theory c. To prove the hypothesis d. To produce replicated results of other groups e. To compare results to the experimental group with the variable being tested
A symporter is moving glucose and sodium levels are being depleted in extracellular fluids. What can be concluded about the movement of glucose? Choose all that apply.A) Glucose would be moving against its gradient into the cell.B) Glucose follows the gradient of sodium into the cell.C) Glucose would be moving with its gradient into the cell.D) ATP is not required to move sodium down its concentration gradient.E) Energy is needed to move glucose down its concentration gradient.F) Glucose's movement would still be considered diffusion.G) Glucose's movement is considered a part of coupled transport.
What will be an ideal response?