The formation of the ozone shield during the Precambrian era helped to create favorable conditions for the evolution of terrestrial life forms.
Answer the following statement true (T) or false (F)
True
It is true that the formation of the ozone shield during the Precambrian era helped to create favorable conditions for the evolution of terrestrial life forms.
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In female mammals, most of the inactive X chromosome has become:a
associated with histones. b. active X factor. c. euchromatin. d. replicated. e. heterochromatin.
Cells use ________ to transfer DNA from one cell to another via conjugation.
A) fimbriae. B) pili. C) hami D) glycopeptides.
The sequencing and analysis of an organism's genetic information is called
A) protein synthesis. B) gene therapy. C) genomics. D) northern blotting. E) PCR.
Which of the following is a complex carbohydrate that cannot be digested?
A) disaccharides B) starches C) fibers D) high fructose corn syrup