Why is DNA replication considered semi-conservative? answer this in a few sentences (short answer) Why does the genetic code use codons that always consist of 3 nucleotides? answer this in a few sentences (short answer)

Why is DNA replication considered semi-conservative? answer this in a few sentences (short answer) Why does the genetic code use codons that always consist of 3 nucleotides? answer this in a few sentences (short answer)

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 20QP: What is the function of DNA polymerase? a. It degrades DNA in cells. b. It adds RNA nucleotides to a...

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Concept explainers

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.

Question

Why is DNA replication considered semi-conservative?

answer this in a few sentences (short answer)

Why does the genetic code use codons that always consist of 3 nucleotides?

answer this in a few sentences (short answer)

Definition Definition A complex molecule that makes up a fundamental unit of a DNA or RNA molecule. Nucleotides are composed of a sugar, a nitrogenous base, and a phosphoric acid.

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How does DNA replication occur in a precise manner to ensure that identical genetic information is put into the new chromatid? See Figures 8.12 and 8.13. FIGURE 8.12 In DNA replication, the two polynucleotide strands uncoil, and each is a template for synthesizing a new strand. A replicated DNA molecule contains one new strand and one old strand. This mechanism is called semiconservative replication. FIGURE 8.13 A close-up look at the process of DNA replication. (a) As the strands uncoil, bases are added to the newly synthesized strand by complementary base pairing with bases in the template strand. The new bases are linked together by DNA polymerase. (b) DNA synthesis can proceed only in the 5 3 direction; newly synthesized DNA on one template strand is made in short segments and linked together by the enzyme DNA ligase.
What is the function of DNA polymerase? a. It degrades DNA in cells. b. It adds RNA nucleotides to a new strand. c. It coils DNA around histones to form chromosomes. d. It adds DNA nucleotides to a replicating strand. e. None of these.
What is the importance of complementary base pairing to DNA replication?
A portion of one strand of DNA has the sequence 5′ AATGGCTTA 3′. If this strand is used as a template for DNA replication, which of the following correctly depicts the sequence of the newly synthesized strand in the direction in which it will be synthesized? 5′ TAAGCCATT 3′ 5′ TTACCGAAT 3′ 3′ AATGGCTTA 5′ 3′ TTACCGAAT 5′ 5′ AATGGCTTA 3′
During DNA replication, the template sequence 5' ATAGGCC 3' would produce which one of the following sequences for the complementary strand? a. 5' GGCCTAT 3' b. 5' CCGGATA 3' c. 5' ATAGGCC 3' d. 5' TATCCGG 3'
. Why is DNA synthesis continuous on one strand and discontinuous on the opposite strand?
Why is DNA replication is considered a semi-discontinuous process? Explain in detail.
A DNA strand has the following sequence: 5’-GAACCCGATGGCGATACATTTACCAGATCACCAGC-3’ In which direction would DNA polymerase slide along this strand (from left to right or from right to left)? If this strand was used as a template by DNA polymerase, what would be the sequence of the newly made strand? Indicate the 5’ and 3’ ends of the newly made strand.
in DNA replication, if the template strand is 5’-ATCCGTGTAACCTT-3’, what is the sequence of the newly synthesized DNA strand? Write the sequence from 5’ to 3’.
Why is replication called semi-conservative? each new molecule of DNA contains one template strand and a newly synthesized one only some of the lagging strand is conserved all strands are conserved except for one strand not all leading strands are conserved
Which of the following statements BEST describes the process of DNA Replication? Group of answer choices The two strands of the parental molecule separate and serves as template for synthesis of a new strand. Each new strand is identical to its template strand. Each strand of both daughter molecules contains a mixture of old and newly synthesized DNA. The two parental strands reassociate after acting as templates for new strands restoring the parental double helix.
Which of the following steps in DNA replication would occur second? 1.DNA molecule separates into two template strands.2.Complimentary nucleotides are added to each template strand.3.DNA molecule unwinds.4.Two DNA molecules, each with a template strand and a new strand, are formed.