Question

How many nucleotides are present in the normal dna sequence in model 1?

Answer 1

The genes encoded in our DNA leads to the assembly of proteins that perform specific functions at intervals in our cells. Varied environmental factors and spontaneous events will result in changes in genes. These changes square measure referred to as mutations and that they will result in alterations within the structure and activity of the proteins our cells utilized in our daily activities. In alternative words, changes to our genotype may end up in changes to our phenotype.

Sequence 1 (normal)

DNA sequence
T A C G T A G T C A C C T A A T G G A T C

mRNA sequence A U G C A U C A G U G G A U U A C C U A G

Amino acid sequence Met His Gln Trp Ile Thr stop.

Hence, FOUR nucleotides are present in the “normal” DNA sequence in Model 1.

Answer 2

Four nucleotides  

Further Explanation:

Four nucleotides are present in a typical DNA sequence. DNA consists of a five-carbon sugar molecule, phosphate molecule, and a nitrogenous base. The nucleotide present in a DNA sequence is consists of four nitrogenous bases, which are thymine (T), cytosine (C), adenine (A), and guanine (G).  

There are two different groups of bases which are purines and pyrimidines. Cytosine and thymine are pyrimidines having a six-member ring. Adenine and guanine are purines , which is a double ring consists of one five-member ring and one six-member ring. The sequence of nucleotides in the DNA segment encodes the genetic information possessed by DNA. Adenine always binds with thymine, and guanine bonds with cytosine. This arrangement is called complementary base pairing. The bases are bonded together through hydrogen bonds. Two hydrogen bonds are formed between adenine and thymine, whereas three hydrogen bonds are formed between cytosine and thymine. These hydrogen bonds are broken when the DNA replication starts.  

Learn more:

1. Learn more about the difference in DNA and RNA brainly.com/question/334927

2. Learn more about the similarity between aerobic and anaerobic respiration brainly.com/question/1544781

3. Learn more about site of protein synthesis brainly.com/question/1420458

Answer Details:

Grade: High school

Subject: Biology

Chapter: Genetics

Keywords:  

Nucleotides, four, DNA, sugar, phosphate, thymine, cytosine, guanine, adenine, hydrogen bonds