Which of the following is TRUE of a genetic mutation?

A. It always produces harmful effects.
B. It never affects protein structure or function.
C. It is not a mechanism through which biological evolution occurs.
D. It happens quite frequently in a population.
E. It generally produces a change in the DNA sequence of a gene.


E. It generally produces a change in the DNA sequence of a gene.

Biology & Microbiology

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Ecology

A. is the study of plant and animal interactions. B. is the study of biomes and climate. C. is primarily involved with studies of individual organisms. D. works for the good of the environment. E. is the study of interactions between organisms and their environment.

Biology & Microbiology

Rebecca found out that she has a mass of dividing cells called a tumor in her ovaries. She has had tests and is returning to the doctor. Which of the following would be the best news that Rebecca could receive from her doctor?

A. It is a benign tumor. B. The cells are cancerous and are in situ. C. It is malignant ovarian cancer. D. The tumor has metastasized and invaded neighboring tissue. E. It is a malignant tumor.

Biology & Microbiology

What is an example of a limit on population growth, and proposed by Darwin to be a mechanism of evolution by

natural selection? a. predation b. inheritance of traits c. epidermal coloration d. resistance to infection e. spawning of hundreds of eggs

Biology & Microbiology

Angiosperms are unique among plants because they produce ________

Fill in the blank(s) with correct word

Biology & Microbiology