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nata0808 [166]
3 years ago
15

How does a hydrogen bond form?

Biology
1 answer:
AlexFokin [52]3 years ago
3 0
A hydrogen bond forms from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom.
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Why does the moon orbit Earth?
dem82 [27]

Answer:

because of gravitanal pull

Explanation:

5 0
3 years ago
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In a certain plant, fruit color is affected by an epistatic interaction between two genes. The fruit is red in the presence of a
sukhopar [10]

Answer:

15/16 or 93.75%

Explanation:

<em>The proportion of the offspring of the cross expected to be red would be 15/16 or an equivalence of 93.75%.</em>

Red fruit color is conditioned by the presence of A_, B_ or A_B_ alleles. In the absence of both dominant alleles, the condition is white. AaBb was crossed with AaBb.

AaBb   x   AaBb

Progeny' Genotype       Phenotype

1 AABB                               red

2 AABb                               red

2 AaBB                                red

4 AaBb                                 red

1 AAbb                                 red

2 Aabb                                  red

1 aaBB                                  red

2 aaBb                                  red

1 aabb                                   white

Hence, the proportion of the offspring that are expected to be red is 15/16 or 93.75%.

<em>See the attached image for the Punnet's square analysis of the cross.</em>

8 0
3 years ago
Which of the following is (are) unique to animals?
worty [1.4K]

C) nervous system signal conduction and muscular

Just took this test plz mark brainliest so i can help others like you and reach higher goals

7 0
3 years ago
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About 1,500,000 bacteria are found in 1 milliliter of water of coastal ocean. How many bacteria will be there in 100 milliliters
igomit [66]

A single-celled prokaryotic organism that is generally free-living and of few micrometers in length is bacteria. They are very small in size that cannot be seen without a microscope.

1. 5 \times  10^{8} bacteria will be present in 100 milliliters of water.

<h3>How to calculate the number of bacteria?</h3>

Given,

  • 1 milliliter = 1,500,000 bacteria
  • 100 milliliter = ?

\begin{aligned}\rm Bacteria &=\dfrac{ 100 \rm milliliter  \times  1,500,000} { 1 \;\rm milliliter} \\\\&= 1,50,000,000 \;\rm bacteria \\\\&= 1.5 \times  10 ^{8} \;\rm bacteria\end{aligned}

Therefore, option E is correct.

Learn more about bacteria here:

brainly.com/question/2490932

8 0
3 years ago
What is represented at the tips of branches in a phylogeny?
Alchen [17]

Answer:

the tips of a phylogeny can correspond to individual organisms

Explanation:

3 0
2 years ago
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