Crossing-over is more likely to separate genes on a chromatid if they are
A. recessive genes.
B. close together.
C. dominant genes.
D. far apart.
E. mutated genes.
D. far apart.
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Which of the following is the probable basis for the
evolution of mitochondria and chloroplasts? a. Cells eat each other. b. Light is an energy source. c. ATP can carry energy. d. Oxygen is a by-product of photosynthesis. e. Energy can be transformed from one form to another.
A 39-year-old woman and 42-year-old man are expecting a child; the woman is 6 weeks pregnant. The pregnancy is categorized as high risk due to the age of the parents, and the couple would like to have prenatal testing done to see if any genetic disorders are present in the fetus. Their doctor should suggest
A. a pedigree analysis. B. amniocentesis. C. chorionic villi sampling. D. genetic counseling.
The most complex group of unicellular protists is the ________
Fill in the blank(s) with correct word
Competition between beneficial microbes and potential pathogens is called microbial (antagonisms/synergy/toxicity)
What will be an ideal response?