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vivado [14]
3 years ago
7

Which one of the following discoveries involving DNA happened first?

Biology
1 answer:
Allushta [10]3 years ago
4 0
The correct answer is B
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Several students were having a discussion about the role of chromosomes in inheriting traits.
serious [3.7K]

Answer:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.

Explanation:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  - this is true. Prior to cell division, DNA molecules are organized into large structures called chromosomes. Specific regions of a DNA molecule are called genes. These dictate specific proteins which control our traits.

Genes contain thousands of chromosomes that carry specific information about building proteins for a particular trait.  - this is false - genes are segments of DNA that control specific traits by dictating the structure and functions of proteins. Chromosomes contain thousands of genes

Chromosomes are small sections of DNA that contain specific information about a trait to build proteins that people inherit. The thousands of different chromosomes passed from the parents allow for humans to look uniquely different. - this is false - chromosomes are large structures, genes are the relatively small sections of DNA. Humans have 23 pairs of chromosomes, not thousands.

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.  - this is true. In diploid organisms, like humans, have two copies of each chromosome. These chromosomes contain slightly different versions of genes, which make us unique.

7 0
3 years ago
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Effectus [21]

Answer:

here is the order

Genetics

Allele

Hybrid then law of independent assortment

Law of segregation

3 0
3 years ago
Please help me?!!!!!
Lesechka [4]
The one which y=1/7x^2
6 0
3 years ago
Most peripheral nerves are _____, carrying both sensory & motor impulses.
vova2212 [387]
Most peripheral nerves are nerves outside the brain and the spinal cord, carrying both sensory and motor impulses. The peripheral nervous system is one of the two components of the nervous system, the other part is the central nervous system. Peripheral nerves are classified into motor, sensory and autonomic nerves. 
5 0
3 years ago
Read 2 more answers
Which elements are involved in crating genetic material?
Rama09 [41]

Answer:

Carbon, oxygen, hydrogen, nitrogen, and phosphorus are all involved in creating genetic material.

Explanation:

6 0
2 years ago
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