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svp [43]
3 years ago
11

Which of the following methods should be used for handling live animals in the lab?

Biology
1 answer:
julsineya [31]3 years ago
6 0
Treat animals gently under all conditions. You don’t want to hurt them at all.
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A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the labor
bekas [8.4K]

Answer:

The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

Explanation:

A mutation is any change, whether big or small, that occurs to the nucleotide sequence of a gene in a cell as caused by mistake during replication or induced by a mutation causing substance. These mutation-causing substances are called MUTAGEN.

A MUTAGEN is any substance that causes genetic mutation in an organism's cell. These changes in the nucleotide sequence can affect one or more phenotypic characteristics of the affected organism, which is also passed to offsprings because it is a genetic change.

Hence, a plant cell exposed to this mutagen will be induced to mutate.

Hence, the cells changing after being exposed to the chemical, which is also passed to the next generation of cells best provides explanation that the chemical is a MUTAGEN.

4 0
3 years ago
Plants in a tropical rainforest usually have
Marat540 [252]
They usually have Broad Leaves

I hope this helps!
7 0
3 years ago
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Which is an example of codominance?
Ksenya-84 [330]

Answer:

B

Explanation:

Codominance means that both traits from the parents are apparent

4 0
3 years ago
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1.) How do photosynthesis and cellular respiration relate to each other?
lyudmila [28]
1.) the products of photosynthesis are the reactants and the other way around too
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3.) to convert energy from the sun (with other things) into energy (glucose)

this has to be broken down to be used but all things get their energy from the sun, producers get it directly, then primary consumers eat the producers, then secondary,and tertiary
but it is all comes from the sun originally
4 0
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If 1,000 f2 offspring resulted from the cross, approximately how many of them would you expect to have red, terminal flowers?
Hoochie [10]
I think the answer was 190
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