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hoa [83]
3 years ago
9

Why isn't it possible for adenine to pair with cytosine or guanine?

Biology
1 answer:
IRINA_888 [86]3 years ago
5 0

Answer:

Thymine and uracil or adenine have two hydrogen bonds between them, whereas guanine and cytosine have three.

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Mass wasting occurs when ____
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Soil, sand, and Rock move downslope typically
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A doctor is studying a disease where the nucleus of a cell does not grow properly. What do you think would happen to the cells'
Drupady [299]

Answer:

The cell would fail to function. It would likely fail to properly replicate DNA properly or transcribe genes.

Explanation:

The nucleus holds the genetic information, the DNA. If the nucleus does not grow properly, the DNA might not fit or be properly organized inside. This would mean DNA replication could not proceed as normal, and the DNA might not even be able to fit inside the nucleus!

The cell would also struggle to properly transcribe the DNA if the nucleus is not fully formed. DNA acts as a template for mRNA transcription, which directs protein synthesis. The cell will very quickly die if there are inaccuracies in protein synthesis due to mRNA not being adequately synthesized.

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What does the graph show the importance of clean air?
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Answer:

C. Most people will die from negative health effects associated with stroke as indoor dirty air builds up.

Explanation:

<u>C is correct option</u> because it shows the highest proportion of people's death caused by stroke. On the other options are not correct due to the following reasons:

A is incorrect because it says that people have a lower risk of dying from COPD. On the other hand, the graph shows that this is 3rd most abundant cause of deaths.

B is incorrect because deaths due to lung cancer are the lowest according to the graphical illustration.

D is incorrect because the proportion of developing acute lower respiratory infection and ischemic heart disease are not the same. Deaths due to ischemic heart disease are higher than the acute lower respiratory infection.

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PLEASE HELP!!!! MULTIPLE CHOICE
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Answer:

c

Explanation:

6 0
2 years ago
In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
marta [7]

Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
5 0
3 years ago
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