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3 years ago

What can a person do to limit exposure to X-rays?

Biology

2 answers:

Ann [662]3 years ago

6 0

Answer:

To limits exposure of X-rays, One can do the following things:

1) Use a protective shield through which X-Rays can't pass.

2) Prevent X-rays as much as u can.

3) Don't go to places where you doubt the presence of X-Ray Radiations.

4) If not needed, Don't do CT scan.

ladessa [460]3 years ago

3 0

Distance and shielding can protect a person from X Ray radiation. An example could be how X Ray technicians go into a room that’s away from you whenever you get an x ray at a hospital. Distance is effective because it can reduce exposure. Hope this helped!

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7nadin3 [17]

I’d say B is the best choice

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3 years ago

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3 years ago

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allsm [11]

Answer:

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2 years ago

In order to carry out the testcross, you should cross your original pea plant with another pea plant whose phenotype is ________

Makovka662 [10]

<span>My pea plant has an unknown genotype for flowers, whether it has two dominant traits for white flowers (WW) or one dominant and one recessive (Ww) leading to white flowers; therefore I am doing a testcross in order to determine the genotype of my pea plant. The best plant to do this with is one that has a phenotype of purple flowers (ww) - that is, it is homozygous for the recessive trait. If I use a homozygous recessive plant, I know exactly what its genotype is. I don't have to worry about whether it's got one or two dominant alleles; I know that at least half of my alleles are going to be the recessive w. This makes identifying the offspring's genotype very simple. If I find that the offspring have at least some purple flowers among them, I know that my original plant had to be Ww; that is it had to have one dominant and one recessive allele for the flower color gene. If, however, all of the offspring are white flowers, I know that my original pea plant had both dominant alleles (WW).</span>

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3 years ago

You are conducting a CRISPR-Cas9 experiment. You transform a cell with Cas9 and a guide RNA (contains the scaffold and guide seq

SOVA2 [1]

Answer:

Cas9-sgRNA cannot align with targeted DNA sequence

Explanation:

Without a PAM sequence, the CRISPR-sgRNA (small guide RNA) complex cannot align with the targeted DNA sequence. Therefore, you cannot perform experiments (e.g. gene editing) using CRISPR-Cas9.

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2 years ago