This bacterium's ability to survive in a human who is taking penicillin pills may be due to the presence of which of the following?
1. penicillin-resistance genes
2. a gram-positive cell wall
3. a gram-negative cell wall
4. an endospore
Answer:
3. a gram-negative cell wall
4. an endospore
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A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. If he marries a woman who is also heterozygous for freckles, ______ percent of their children are predicted to be freckled. Also, of all their children, ______ percent are predicted to be heterozygous. rev:
A. 100%, 100% B. 75%, 50% C. 75%, 25% D. 50%, 50% E. 100%, 75%
As many as one-third of all pregnancies end in miscarriage
Indicate whether the statement is true or false
Appraise and evaluate the following statement, and cite evidence from the chapter as appropriate: Despite having a closer "outward" appearance to plants in some ways, evidence support fungi as being far more closely related to animals than plants
What will be an ideal response?
In which phase of the cell cycle do cells check to determine whether the DNA is fully and correctly replicated?
(a) at the transition between G1 and S (b) when cells enter G0 (c) during M (d) at the end of G2