Question

Please answer the following questions​

What type of bonds holds the two strands of a DNA double helix together? Select one: a. covalent bonds b. hydrogen bonds c. ionic bonds d. peptide bonds e. sulfur bonds What subunits (monomers) make up DNA? Select one: a. Amino acids b. Water c. Peptides d. ATPs e. Nucleotides What type of molecules are responsible for uncoiling the DNA double helix to initiate DNA replication? Select one: a. Lipids b. Enzymes c. Carbohydrates d. RNA e. Amino acids When the amounts of the different bases, (adenine, guanine, thymine and cytosine), in an organism's DNA is measured which of the following is true? Select one: a. A = C and G = T b. A = G and C = T c. A = T and C = G d. none of the bases would be equal in amount e. all bases are equal in amount Where is the genetic information located in all living organisms? Select one: a. Cytoplasm b. Proteins c. DNA d. Ribosomes e. mRNA

Thanks!

Answer 1

Answers: -

1.option "b"-hydrogen bonds.

2.Option "e"-nucleotides.

3.option "b"enzymes.

4."e"-all bases are equal in amounts.

5.option "c"-DNA.

Answer 2

What type of bonds holds the two strands of a DNA double helix together?

Answer. B. Hydrogen bonds

Explanation: Hydrogen bonds exist between the two strands and form between a base, from one strand and a base from the second strand in complementary pairing. These hydrogen bonds are individually weak but collectively quite strong.

 What subunits (monomers) make up DNA?  

Answer e. Nucleotides 

Explanation: DNA is composed of smaller subunits know as Nucleotides. The three parts of a nucleotide are Sugar, phosphate, and a nitrogen base. The four nitrogen bases that are found in DNA are Adenine, cytosine, guanine, and thymine.

What type of molecules are responsible for uncoiling the DNA double helix to initiate DNA replication? 

Answer b. Enzymes 

Explanation: DNA helicase is the enzyme that unwinds the DNA double helix by breaking the hydrogen bonds down the center of the strand. It begins at a site called the origin of replication, and it creates a replication fork by separating the two sides of the parental DNA.

 When the amounts of the different bases, (adenine, guanine, thymine and cytosine), in an organism's DNA is measured which of the following is true?

Answer e. all bases are equal in amount 

Explanation: Adenine always binds with thymine, and cytosine always binds with guanine. Since certain bases always appear in pairs, they will have equal percentages of the DNA composition. The percentage of adenine will equal the percentage of thymine, and the percentage of cytosine will equal the percentage of guanine.

Where is the genetic information located in all living organisms? 

Answer c. DNA 

Explanation: The genetic information of an organism is stored in DNA molecules