What are all the possible gametic genotypes produced by a trisomic individual that is genotype A/A+/B for the trisomic chromosome?
What will be an ideal response?
Three types of haploid gametes may be produced: A, A+, and B; and three types of disomic gametes may be produced: A/A+, A/B, and A+/B.
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There are so many gray areas in life, and so many different opinions, that decisions can only be made on a case-by-case basis. This statement best describes:
A chromosome has a gene for long toes. Which of the following would likely be homologous
to this chromosome?
a. a chromosome with a gene for short toes b. a chromosome with a gene for long fingers c. a chromosome with a trait associated with toe shape other than length d. a chromosome from either parent
Plants compete for light, a response known as ____, in which plants tend to grow taller when closely surrounded by
other plants. a. epinasty b. phototropism c. shade avoidance d. shade tolerance e. thigmotropism
During each PCR cycle, what happens to the number of copies of a DNA segment?
A.) It stays the same. B.) It doubles. C.) It quadruples. D.) It increases to 1 billion.