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balu736 [363]
3 years ago
11

What percentage does each square in a punnett square represent? A.25% B.33% C.50%

Biology
2 answers:
Lera25 [3.4K]3 years ago
8 0
The answer would be A. 25%
iren [92.7K]3 years ago
7 0

Answer:

Divide the number of boxes with a dominant allele by four and multiply the result by 100 to get the percent chance that an offspring will have the dominant trait. For example (2/4)*100 = 50, so there is a 50 percent chance of an offspring having brown eyes.

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You dilute your bacteriophage for plating 10^-6. You mix 0.1ml of the bacteriophage dilution with 0.3ml of bacteria and plate wi
Blizzard [7]

Answer:

46 * 10^7 pfu/ml

Explanation:

Given -

Bacteriophage dilution = 0.1 ml

Volume of bacteria and plate with top agar  = 0.3 ml

Number of plaques = 46 pfu

Dilution (d) = 10^{-6}

Final concentration of phage stock is equal to

= \frac{pfu}{d*v}

Where pfu is the count of plaques

d is the dilution and v is the volume

Substituting the given values, we get -

\frac{46}{10^{-6} * 10^{-1}} \\= 46 * 10^7 pfu/ml

7 0
3 years ago
1. Answer these questions.
uysha [10]

Answer:

a. Carbohydrates provides energy and regulation of blood glucose.

b. The monomer/building block of a carbohydrate is a monosaccharide.

c. The building blocks of lipids are fatty acids.

d. Some examples can be oils, vitamins, and fats.

e. Lipids store energy.

f.  The building blocks of proteins are amino acids.

g.  Examples of proteins are meat, fish, eggs, and cheese(mainly foods you consume).

h. The building block of a nucleic acids is a nucleotide.

i. The biomolecules that have CHO are carbohydrates and lipids.

j. The quote"You are what you eat" means that it is important to eat good food in order to be healthy and fit.

<u><em>Hope it helps!</em></u>

5 0
2 years ago
DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. The most likely expla
babunello [35]

Answer:a. humans and chimpanzees share a relatively recent common ancestor.

Explanation:

Humans and chimpanzees are not evolved from one another, but both have a common ancestors. Humans share a common ape ancestor with chimpanzees who is expected to live 6-8 million years ago. The humans and chimpanzees have been evolved differently from this ancestor.

8 0
2 years ago
Will mark brainliest!!
Free_Kalibri [48]

Answer:

Explanation:

Gas exchange

When a plant is carrying out photosynthesis carbon dioxide needs to move from the air into the leaf. It does this by diffusing through small pores called stomata. At the same time oxygen moves out of the leaf through the stomata. This movement of gases in opposite directions is called gas exchange.

8 0
3 years ago
Which of the following pieces of evidence supports the theory of plate tectonics?
lina2011 [118]
D- the mountains are evidence of plate tectonics
8 0
3 years ago
Read 2 more answers
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