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bearhunter [10]
2 years ago
11

Pleas e Brainlyiest if you answer

Biology
2 answers:
oksano4ka [1.4K]2 years ago
8 0

Answer:

The second option (i think)

Explanation:

Chromosomes are the things that make organisms what they are. They carry all of the information used to help a cell grow, thrive, and reproduce. Chromosomes are made up of DNA. Segments of DNA in specific patterns are called genes.

Sonbull [250]2 years ago
4 0

Answer:

B

Explanation:

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They are composed of chains of _____ _______ made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
e-lub [12.9K]

Answer:

amino acids

Explanation:

Proteins are made up of small units called amino acids. The proteins are composed of carbon, hydrogen, oxygen and nitrogen. In addition to nitrogen, proteins may contain phosphorus or sulphur or both. The proteins are referred to as nitrogenous compounds because they contain nitrogen element.

5 0
3 years ago
Imagine you do a test cross between a purple-flowered pea plant having serrated leaves (a dominant trait) and a white-flowered p
Rom4ik [11]

Answer:

genes for flower color and edge shape are linked. They do not assort independently.

Explanation:

<u>Available data:</u>

  • test cross between a purple-flowered pea plant having serrated leaves and a white-flowered pea plant having smooth edges.
  • serrated leaves → dominant trait
  • smooth edges → recessive trait
  • purple color → dominant trait
  • white color → recessive trait
  • F1: 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth.

There are two genes involved in the cross. The expected ratios are 1:1:1:1 because we assume genes assort independently. However, we see a different phenotypic distribution. When phenotypic ratios differ from the expected ones, it means that genes are linked.

To know if two genes are linked in the same chromosome, we must observe the progeny distribution. If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. But if instead of this distribution, we observe a different one, that is that phenotypes appear in different proportions, we can assume that genes are linked in the double heterozygote parent

 

5 0
3 years ago
Which diagram best explains changes to the composition of blood in the lungs?
fredd [130]

Answer:

A

Explanation:

Just because

7 0
3 years ago
WILL MARK BRAINLYEST
kobusy [5.1K]

Answer:

I would say <u>It is a ribosme which assembles proteins in eukaryotes</u>

8 0
3 years ago
Complete the sentence using the word below​
8090 [49]

Answer:

During a process called photosynthesis, plants take in carbon dioxide, sunlight ,and water.

Plants make sugar and give off oxygen as a by-product of this process.

Please mark me brainliest if this answer could help, have a great day.

5 0
2 years ago
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