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atroni [7]
3 years ago
10

1. What is a double helix?

Biology
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

1. Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.

2. The DNA double helix. The two sides are the sugar-phosphate backbones, composed of alternating phosphate groups and deoxyribose sugars. The nitrogenous bases face the center of the double helix.

3. A nucleotide is an organic molecule that is the building block of DNA and RNA. ... A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.

4. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.

5. In genetics, the term junk DNA refers to regions of DNA that are non-coding. Some of this noncoding DNA is used to produce noncoding RNA components such as transfer RNA, regulatory RNA and ribosomal RNA

Hopes this helps.

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John and Pat are identical twins with identical DNA. John works in a movie theater, and Pat works as a lifeguard. They have very
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Answer:

A. Skin color, a polygenetic trait, is also determined by environmental factors.

Explanation:

When you are a lifegaurd you are outside much more which means you are very likely to get a tan; Therefore changing the pigment of Pat's skin.

I hope this helps you :) Have a nice day!

6 0
3 years ago
Read 2 more answers
Neutrons are also known as what
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a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

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Which of the following is a mobile body type of cnidarians?
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The Answer Would Be #2 Polyp
4 0
3 years ago
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Problem #1
Arisa [49]

Answer:

9/16  Kinked tail, normal growth

3/16 Kinked tail, obese growth

3/16 normal tail, normal growth

1/16 normal tail, obese growth

Explanation:

Kinked tail (K) is dominant over normal tail (k) and normal growth (N) is dominant over obese growth (n). Two mice that are heterozygous for both traits (KkNn) are crossed:

        KkNn    x    KkNn

offspring:

<em>9/16</em><em> K_N_ - Kinked tail, normal growth</em>

<em>3/16</em><em> K_nn - Kinked tail, obese growth</em>

<em>3/16</em><em> kkN_ - normal tail, normal growth</em>

<em>1/16</em><em> kknn - normal tail, obese growth</em>

(See the attached image for the Punnet's square analysis)

3 0
3 years ago
Breeding programs and habitat preserves have been established as an effort to protect the florida panther from extinction. studi
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The answer is ‘panthers will become extinct due to the lack of genetic diversity’. The population will enter what is referred to an extinction vortex. This is when environmental, demographic and genetic factors interact and reinforce each other in a downward spiral of a species. The lack of genetic diversity in the population causes inbreeding and lack of diversity on which natural selection can act upon for the population to adapt.
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3 years ago
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