Griffith, a British microbiologist, used bacteria and mice to demonstrate the process of transformation. During transformation,  

A.  a bacterial chromosome produces an exact copy of itself.
B.  the nucleus of a mouse cell repairs itself when damaged by bacterial infection.
C.  DNA from an infected mouse cell changes bacteria from a non-pathogenic to a pathogenic form.
D.  genetic material is transferred from one bacterial cell to another.
E.  a bacterial cell is transformed into a spore during unsuitable environmental conditions.


D.  genetic material is transferred from one bacterial cell to another.

Biology & Microbiology

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In humans, hemophilia is caused by a recessive allele on the X chromosome. Suppose a man with hemophilia has children with a healthy woman whose mother had hemophilia. What is the probability that their second child will have hemophilia? (Enter the probability as a percent. Enter the number only without the percent sign. For example, enter 100% as 100 and enter 12.5% as 12.5)  

What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain?   Gather Content · What do you already know about X-linked inheritance?   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?

Biology & Microbiology

All of the following are hydrophytes except:

a. turtle grass. b. Zostera. c. surf grass. d. cordgrass.

Biology & Microbiology

Which organism is considered part of the nekton?

a. frigate bird b. penguin c. cormorant d. snowy plover e. albatross

Biology & Microbiology

An abnormally high buildup of aqueous humor in the eye is called _________

Fill in the blank(s) with correct word

Biology & Microbiology