BIOL 1010U Quiz: sbi4u unit test dna structure, replication (1)

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mostafazahiri

28 Oct 2021

School

UOIT

Department

Biology

Course

BIOL 1010U

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Indicate weather each statement is true or false. 1- ( )histons are proteins that is used to condense dna. 2- ( )pyrimidine is a nitrogenous base with a double-ring structure. 3- ( )dna"s backbone is held together by hydrogen bonds, while the complementary bases are held togheter by phosphodiester. 4- ( )replication of lagging strand make shorter strand with each replication. 5- ( )in the dna molecule, pyrimidines must pair with purines. 6- ( )backbone of dna is held together by phosphodiester bonds and complementary bases are held together by hydrogen bonds. 7- ( )dna ligase will glue the okazaki fragments together using a glycosyl bond. 8- ( )the lagging strand is the new strand that grows discontinuously away from the replication fork. 9- ( )the new dna strand formed after dna replication is an exact copy of its parent strand.

Related Questions

Place the following steps of DNA replication in right chronological order.
1. Primase adds an ribonucleotide primer
2. Initiator proteins bind the origin of replication and helicase breaks hydrogen bonds between complementary bases of double stranded template DNA
3. DNA polymerase III extends by complementary base pairing deoxyribonucleotides to the template strands
4. Ligase phosphodiester bonds the nucleotides to connect okazaki fragments nad connect fragments at the origin and where the "crotches or forks" collide
5. DNA polymerase I removes RNA primer and replaces with Deoxyribonucleotides

plumsardine151

1) What is the difference between the leading strand and the lagging strand in DNA replication? Place the following steps of DNA replication in right chronological order.

1. Primase adds an ribonucleotide primer
2. Initiator proteins bind the origin of replication and helicase breaks hydrogen bonds between complementary bases of double stranded template DNA
3. DNA polymerase III extends by complementary base pairing deoxyribonucleotides to the template strands
4. Ligase phosphodiester bonds the nucleotides to connect okazaki fragments nad connect fragments at the origin and where the "crotches or forks" collide
5. DNA polymerase I removes RNA primer and replaces with Deoxyribonucleotides

2) Given the template DNA and primer sequences below, what bases will be added to the primer as DNA replication proceeds? (The bases should appear in the order that they will be added)

5'-GTCGTCTCCCTTTTTAAAAACCCCCCC-3'
5'-UUUUUAAAAAGGG-3'

3) Given the DNA sequence below, what could be a primer sequence used in its replication?
5'-CGTACGGCCCCAAAATTGCTACTCTGCTG-3'

raspberryleopard304

The enzyme that catalyzes the addition of deoxyribonucleotides to DNA: ______________________

This enzyme that relaxes or unwinds the DNA for replication is _______________.

Proteins that use ATP hydrolysis to separate the DNA during replication are called _______________.

In E. coli,______________ protein binds to the origin of replication.

The type of topoisomerase that can introduce supercoils is _______________.

The protein that keeps the double stranded DNA separated from each other is___________________.

This protein used energy to create the phosphodiester bond:_____________________

The enzyme that adds on RNA primer in DNA replication is __________________.

The DNA strand that is replicated continuously is known as the ______________ strand.

Elongation of the DNA strand proceeds in the _____ direction.

BIOL 1010U Quiz: sbi4u unit test dna structure, replication (1)

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