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icang [17]
3 years ago
5

Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

Biology
1 answer:
Ahat [919]3 years ago
4 0
Dna contains sulfur and little phosphorus
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What is the relationship between working distance and field of view​
mel-nik [20]

Answer:

yeah

Explanation:

Field Of View (FOV): The Viewable area of the object under inspection. In other words, this is the portion of the object that fills the camera's sensor. Working Distance (WD): The distance from the front of the lens to the object under inspection. Resolution: The minimum feature size of the object under inspection.

4 0
3 years ago
100 POINTS IF CORRECT!!!
Yuliya22 [10]

From a Punnett square you can get the genotypic and phenotypic proportions of the progeny produced from a cross. Cross: PpRr x PpRr. F1: PPRR, PPRr, PPRr, PPrr, PpRr,  Pprr, ppRR,  ppRr, pprr.

<h3>What is a Punnett square?</h3>

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

In the exposed example, we know that two genes are involved in the cross.

As we can see, there are dominant and recessive alleles for both genes.

Since each genotype in the square results from the combination of parental gametes, we can figure out which are the parental genotypes.

For instance, let us consider the provided genotypes

  • PPRr.

We can assume one of the parents provided a P and a R dominant alleles, while the other parent provided another P allele but a r recessive allele.

PR + Pr ⇒ PPRr

  • ppRr.

One of the parents provided a p recessive allele and a R dominant allele, The other parent provided another p allele and a r recessive allele.

pR + pr ⇒ ppRr

  • pprr.

Both parents provided p and r recessive alleles.

pr + pr ⇒ pprr

From this information, we can assume parents are heterozygous for both genes.

Cross:

Parentals)        PpRr        x      PpRr

Gametes) PR, Pr, pR, pr     PR, Pr, pR, pr

Punnett square)    PR           Pr          pR         pr

                   PR     PPRR     PPRr      PpRR     PpRr

                   Pr      PPRr      PPrr       PpRr      Pprr

                   pR     PpRR     PpRr      ppRR     ppRr

                   pr      PpRr      Pprr       ppRr      pprr

F1) 1/16 individuals are expected to be PPRR

   2/16 individuals are epected to be PPRr

   1/16 individuals are expected to be PPrr

   2/16 individuals are expected to be PpRR

   4/16 individuals are expected to be PpRr

   2/16 individuals are expected to be Pprr

    1/16 individuals are expected to be ppRR

    2/16 individuals are expected to be ppRr

    1/16 individuals are expected to be pprr

For a better understanding, you will find the Punnett square in the attached files representing the parental gametes with different colors, and the resulting genotypes with a combination of these colors.

In this way, you will notice which gamete comes from which parent.

You can learn more about Punnett squares at

brainly.com/question/25357981

#SPJ1

5 0
1 year ago
A student sets four bricks in sunlight as shown below which brick will get the hottest?
Pepsi [2]

Answer: well it's which ever one that was getting the most sun and how much timne you leave each brick out in the sun

Explanation:

pls mark brainiest

8 0
3 years ago
Which are the main stages of the cell cycle? Check all that apply.
Serjik [45]

It would be Interphase, Prophase, Metaphase, and Anaphase


4 0
3 years ago
Read 2 more answers
Which of the following is a multicellular organism?
Tresset [83]

Answer:

The answer would be C. mouse.

Explanation:

This is because it has more than one cell. A. Bacterium is unicellular, along with an amoeba and paramecium because they are basic units of life, with only a single cell.

4 0
2 years ago
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