What statement about the DNA double helix is true?

What statement about the DNA double helix is true?

What statement about the DNA double helix is true?

Which statement about the DNA double helix is true? -It allows for fully conservative replication. -The double helix is made up of a single, continuous strand of DNA. -The two strands are antiparallel. -Adenine and cytosine pair together, and guanine and thymine pair together.

Who determined that DNA had a repeating structure and a uniform diameter?

In 1962, James Watson, Francis Crick, and Maurice Wilkins were awarded the Nobel Prize in Medicine for their work in determining the structure of DNA. Now let's consider the structure of the two types of nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Which of the following DNA sequences is complementary to 5 Tagac 3?

5' GTCTA 3'. The complementary strand will run in an antiparallel direction, that is, from 3' to 5'. In addition, cytosine (C) will complement guanine (G), and adenine (A) will complement thymine (T). Therefore, the complementary strand to 5' TAGAC 3' will be: 3' ATCTG 5' which is the same as option C.

How is bacterial DNA replication similar from eukaryotic DNA replication?

Bacterial DNA replication only replicates small pieces of the chromosome, while eukaryotic DNA replication replicates the entire chromosome.

What statement about DNA is true?

The nucleic acid strands in a DNA molecule are oriented antiparallel to each other, meaning they run in opposite directions. This statement is true; the 5′-3′ orientation of each chain runs in opposite directions.

Why does DNA pol I carry the number one?

Why does DNA pol I carry the number one? ... It contains a form of DNA pol III that can add new nucleotides to either the 5' end or the 3' end of an existing strand. All other properties of the enzyme remain unchanged.

What did Watson and Crick get wrong?

It was clear that the hypothesis Watson and Crick had formulated using their metal-and-wire models didn't fit the available evidence on DNA. ... Watson and Crick's model erroneously placed the bases on the outside of the DNA molecule with the phosphates, bound by magnesium or calcium ions, inside.

Who figured out the secondary structure of DNA?

In the 1950s, Francis Crick and James Watson worked together to determine the structure of DNA at the University of Cambridge, England. Other scientists like Linus Pauling and Maurice Wilkins were also actively exploring this field. Pauling had discovered the secondary structure of proteins using X-ray crystallography.

What statement about the major and minor grooves is true quizlet?

What statement about the major and minor grooves is TRUE? The major and minor grooves are important for DNA binding proteins to attach to the DNA.

Is DNA replication faster in prokaryotes or eukaryotes?

Prokaryotic cells possess one or two types of polymerases, whereas eukaryotes have four or more. Replication also happens at a much faster rate in prokaryotic cells, than in eukaryotes. Some bacteria take only 40 minutes, while animal cells such as humans may take up to 400 hours.

How are the major and minor grooves formed?

The major and minor grooves are important for DNA binding proteins to attach to the DNA. The major groove is formed from pyrimidines and the minor groove is formed from purines. The major groove runs in the 5' to 3' direction and the minor groove runs in the 3' to 5' direction.

Where are the major and minor grooves located in the cell?

A) The major groove runs in the 5' to 3' direction and the minor groove runs in the 3' to 5' direction. B) The major and minor grooves are not present in bacterial cells, because they have circular chromosomes. C) The major and minor grooves are important for DNA binding proteins to attach to the DNA.

Why is the template of the lagging strand discontinuous?

D) The template of the lagging strand is discontinuous. E) The DNA polymerase enzyme that synthesizes the lagging strand can only synthesize short sequences of DNA before it falls off the template. A) the DNA molecule can be copied without disrupting the hydrogen bonds between bases.

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