Which of the following is NOT related to genetic drift?

A. Founder effect.
B. Bottleneck effect.
C. Sexual selection.
D. Both the founder effect and the bottleneck effect.
E. Both sexual selection and bottleneck effect.


C. Sexual selection.

Biology & Microbiology

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A bacterial cell that secretes proteins by types II and V systems is most likely Gram-negative.

Answer the following statement true (T) or false (F)

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When acetyl-CoA containing radioactively labeled carbon atoms is fed to cells, the CO2 produced is not initially radioactive. However, molecules of citrate and oxaloacetate are radioactive. Only after some time has passed will radioactive CO2 be released. What is the best explanation for this observation?

A. Acetyl groups are not metabolized directly into CO2, but enter a cyclical metabolic pathway. B. Acetyl groups first combine with citrate and oxaloacetate before being metabolized into CO2. C. Acetyl groups are not metabolized directly into CO2, but enter a linear metabolic pathway. D. Acetyl groups are metabolized directly into CO2.

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When proteins are synthesized by ribosomes on the rough endoplasmic reticulum, where does the translation begin?

A) cytosol B) rough endoplasmic reticulum C) smooth endoplasmic reticulum D) nucleus E) Golgi apparatus

Biology & Microbiology

Inv dup 15 syndrome

What will be an ideal response?

Biology & Microbiology