Ecdysone inhibitors could be used as insecticides
Indicate whether the statement is true or false.
ANS: T PTS: 1 DIF: Moderate
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A cell biologist examines a skin cell from a lizard during metaphase of mitosis and determines that 20 chromatids are present. The role of meiosis in this species is to (Check all that apply)
_____ Produce 4 daughter cells that are genetically different from each other. _____ Produce 4 daughter cells that are genetically different from the original parental cell. _____ Reduce the number of chromosomes per cell from 10 to 5. _____ Reduce the number of chromosomes per cell from 20 to 10. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about meiosis? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Give an explanation for the fact that athletes’ resting heart rates are usually slower than the average rate for healthy humans.
What will be an ideal response?
What is the basic unit of life and the building block of tissues and organs?
a) atom b) organelle c) cell d) dna
In mammals, males are ________ for genes on their sex chromosomes, and females can be ________ or heterozygous for genes on their sex chromosomes.
A. hemizygous; homozygous B. homozygous; hemizygous C. heterozygous; hemizygous D. heterozygous; homozygous