Which of the following lead(s) to genetic variation in sexually reproducing organisms?
a. the process of meiosis
b. the combination of male and female gametes during fertilization
c. mutations that occur during development
d. the process of meiosis and the combination of male and female gametes during
fertilization
D
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Functional differences can be observed by using 16S rRNA gene phylogenetics of a microbial community
Indicate whether the statement is true or false.
What reproductive structure is used by ascomycetes during sexual reproduction?
a. Mycorrhiza b. Zygospore c. Flagellated sperm d. Basidiocarp e. Ascus
Crystal-clear mountain lakes are oligotrophic
Indicate whether the statement is true or false.
There has been a lot of discussion about stem cell research in mainstream literature (i.e., newspapers and magazines). Stem c ells come from all of the following except:
a) umbilical cord b)embryos c) bone marrow d) Stem cells can come from all of these sources