An ovule usually develops directly into a fruit
____________________ Indicate whether the statement is true or false.
F, seed
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What is the minimum concentration of sodium chloride that an extreme halophile requires for growth?
A) 2 M B) 4 M C) 6 M D) 10 M
In two dimensional gel electrophoresis, proteins are first treated with SDS, separated according to molecular mass, and then separated by their net charge at a specific pH
Indicate whether the statement is true or false
Which of the following best explains this phenomenon?
There is a population of frogs living in a pond, 25 are green, 25 are brown, 25 are yellow with green spots and 25 are all yellow. A drought occurred and 75% of the frogs died. The remaining frogs were green and brown, after 25 generations the frogs still were green and brown, yellow frogs never appeared in the population again. A. Sexual selection. B. Balancing selection. C. Bottleneck effect. D. Heterozygote advantage. E. Founder effect.
Some bacteria form a capsule or slime layer around their cell wall in order to promote motility
Indicate whether the statement is true or false