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2 years ago

The backbone of dna (i.e., sides of the dna "ladder") consists of

Biology

2 answers:

yulyashka [42]2 years ago

8 0

Alternating phosphate and sugar residues

Nezavi [6.7K]2 years ago

6 0

The structure of DNA consists of three main molecules-

1. Nucleotides

2. Sugar

3. Phosphate

Now, nucleotides are present on the inner side of the DNA strand, the sides or the backbone of DNA is made of the other two molecules, i.e. sugar and phosphate. The structure looks like the image shared below. One carbon atom of the sugar molecule is connected to nucleotide, and two carbons are connected to phosphates at two sides. This way a chain or the backbone of DNA is formed.

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Name the three types of point (gene) mutations

Snowcat [4.5K]

Answer: base substitutions, deletions and insertions

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2 years ago

Which part of an amino acid is the only one that varies and is what defines its properties?

nadezda [96]

Answer:

R group is the part of an amino acid and that is only one that varies and is what defines its properties

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2 years ago

In a population of pea plants, 36 plants are homozygous for the dominant trait of yellow peas (YY), 48 plants are heterozygous f

baherus [9]

Answer:

The correct answer would be C. 0.60

It can be calculated with the help of Hardy-Weinberg equation i.e

p² + q² + 2pq = 1

Also, p + q = 1

where p represents the frequency of dominant allele.

q represents the frequency of recessive allele.

p² represents the frequency of homozygous dominant genotype .

q² represents the frequency of homozygous recessive genotype .

2pq represents the frequency of heterozygous genotype.

Number of homozygous dominant (YY) = 36

Number of homozygous recessive (yy) = 16

Number of heterozygous dominant (Yy) = 48

Total number of plants = 100

Now, frequency of homozygous dominant (YY) = 36/100 = 0.36

Therefore, p² = 0.36

So, p = √0.36 = 0.60

Hence, frequency of dominant allele (Y) = 0.60

5 0

3 years ago

Which imaginary line divides Earth into the Northern and Southern Hemispheres?

stealth61 [152]

The Equator. It divides the lin

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2 years ago

Read 2 more answers

What is the function in a cell of the carbon compounds nucleic acids

Marta_Voda [28]

They form muscles, speed up chemical reactions, and perform many other cellular functions. Nucleic acids are organic compounds that include DNA and RNA. DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.

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2 years ago