If seed germination took place in 100% of plants at the 1.0 mg/mL concentration, and no germination was observed at the 0.1 mg/mL concentration, how would you modify a second experiment to determine the actual effective concentration?

What will be an ideal response?


Use a narrower range of concentrations for the experimental conditions.

Biology & Microbiology

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First, give the amino acid sequence for the following DNA segment: AATCGAGGTACA. If a base substitution mutation occurred in this segment of DNA, would the resultant amino acid chain be affected?

What will be an ideal response?

Biology & Microbiology

In freshwater sponges and other simple freshwater animals, water flows into the body by __________. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

The interaction of several polypeptide chains

in a hemoglobin molecule is its ____ structure. a. primary b. secondary c. tertiary d. quaternary e. combined

Biology & Microbiology

Why have legumes been planted as a cover crop to improve the soil fertility of a field?

A) Legumes have nitrogen-fixing bacteria in their root nodules. B) The leaves of legumes absorb more nitrogen than other plants. C) Legumes have carbon-fixing bacteria in their root nodules. D) Legumes aid organic decomposition. E) Legumes need about 100 times less nitrogen than other plants.

Biology & Microbiology