How do plants control water uptake
What will be an ideal response?
solute concentration in roots, opening and closing of stomates
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Which of the following statements regarding fern alternation of generations is not correct?
A. Ferns have a dominant, diploid sporophyte. B. The fern gametophyte is very small, but very hardy. C. Most fern gametophytes are capable of producing both male and female gametes. D. Chemical signals released by gametophytes producing eggs cause other, nearby gametophytes to also produce eggs. E. The diploid zygote will grow to become the sporophyte.
Your infant has been diagnosed with severe combined immunodeficiency disease (SCID). Your doctor suggests which treatment as a possible cure for the disease?
A. Gene therapy B. Genome mapping C. Microarrays D. Reverse transcription
Puberty in males marks the start of
a. sperm production. b. testosterone production. c. the emergence of secondary sexual traits. d. fertility. e. all of these.
The modern synthesis was a fusion of ______.
a. genetics and evolutionary biology b. population ecology and genetics c. molecular biology and comparative anatomy d. the fossil record and genetics