Unraveling the Mystery of DNA

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Which structure contains the information to make RNA, some of which encode proteins?

Genes (correct)

Chromosome

Gene expression

Double helix

What are the two ends of a chromosome called?

The two ends (telomeres) (correct)

Double-helix

Origins for initiation of DNA replication

The centromere

What is the term for chromosome regions that do not uncoil after mitosis?

Telomeres

Centromeres

Heterochromatin (correct)

Euchromatin

What is the term for the repeating subunits of DNA and histones?

Nucleosomes Signup and view all the answers

During which phase of the cell cycle does replication and segregation of chromosomes occur?

Proliferating cells Signup and view all the answers

What are the levels of organization of chromatin?

Histones, nucleosomes, chromatin Signup and view all the answers

What is the term for the chromosome regions that are uncoiled and active in interphase?

Euchromatin Signup and view all the answers

What is the term for the basic amino acid proteins associated with DNA?

Histones Signup and view all the answers

What is the term for the long strand of DNA that forms a chromosome?

Chromosome Signup and view all the answers

What are the chromosome regions where DNA replication is initiated called?

Origins for initiation of DNA replication Signup and view all the answers

Which of the following is true about chromosomes?

Chromosomes contain both DNA and protein Signup and view all the answers

Which of the following nitrogenous bases is found in RNA but not in DNA?

Uracil Signup and view all the answers

What type of bond is formed between nucleotides in DNA?

Covalent bond Signup and view all the answers

Which end of a nucleotide is the 5' end?

The end with the phosphate group Signup and view all the answers

Which of the following is true about the base pairing in DNA?

A pairs with T and G pairs with C Signup and view all the answers

What type of forces contribute to the stability of the DNA double helix?

Van der Waals forces Signup and view all the answers

Which groove of the DNA double helix is wider and more accessible to proteins?

Major groove Signup and view all the answers

What did the Hershey-Chase experiment in 1952 demonstrate?

DNA is inherited, while protein is not Signup and view all the answers

Which of the following is true about the shape of DNA bases?

DNA bases have different shapes Signup and view all the answers

What type of bond is formed between an organic acid and an alcohol in the formation of an ester?

Covalent bond Signup and view all the answers

Which of the following is true about the structure of chromosomes?

Chromosomes are made up of DNA and proteins Signup and view all the answers

What is the term for the process by which chromosomes are duplicated and segregated in mitosis?

Replication Signup and view all the answers

What are the two ends of a chromosome called?

Telomeres Signup and view all the answers

What is the term for the chromosome regions that do not uncoil after mitosis?

Heterochromatin Signup and view all the answers

What is the term for the repeating subunits of DNA and histones?

Nucleosomes Signup and view all the answers

What is the term for the DNA sequence elements needed to produce a chromosome that can be replicated and segregated in mitosis?

Origins Signup and view all the answers

What is the term for the chromosome regions that are uncoiled and active in interphase?

Euchromatin Signup and view all the answers

What is the term for the DNA sequence elements where DNA replication is initiated?

Origins Signup and view all the answers

What are the levels of organization of chromatin?

Histones + Nucleosomes Signup and view all the answers

Which of the following is true about the compaction of chromatin during mitosis?

Chromatin becomes more condensed Signup and view all the answers

Which of the following nitrogenous bases is found in both DNA and RNA?

Adenine Signup and view all the answers

What is the term for the process of DNA replication?

Replication Signup and view all the answers

Which end of a nucleotide is the 3' end?

The end with the sugar group Signup and view all the answers

What type of forces contribute to the stability of the DNA double helix?

Hydrogen bonds Signup and view all the answers

What is the term for the regions of DNA where replication is initiated?

Promoters Signup and view all the answers

What type of bond is formed between nucleotides in DNA?

Phosphodiester bond Signup and view all the answers

What is the term for the basic unit of DNA and histones?

Nucleosome Signup and view all the answers

What did the Hershey-Chase experiment in 1952 demonstrate?

The role of DNA in heredity Signup and view all the answers

What are the two ends of a chromosome called?

Centromere and telomere Signup and view all the answers

Which groove of the DNA double helix is narrower and less accessible to proteins?

Minor groove Signup and view all the answers

Unraveling the Mystery of DNA

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Questions and Answers

Which structure contains the information to make RNA, some of which encode proteins?

What are the two ends of a chromosome called?

What is the term for chromosome regions that do not uncoil after mitosis?

What is the term for the repeating subunits of DNA and histones?

During which phase of the cell cycle does replication and segregation of chromosomes occur?

What are the levels of organization of chromatin?

What is the term for the chromosome regions that are uncoiled and active in interphase?

What is the term for the basic amino acid proteins associated with DNA?

What is the term for the long strand of DNA that forms a chromosome?

What are the chromosome regions where DNA replication is initiated called?

Which of the following is true about chromosomes?

Which of the following nitrogenous bases is found in RNA but not in DNA?

What type of bond is formed between nucleotides in DNA?

Which end of a nucleotide is the 5' end?

Which of the following is true about the base pairing in DNA?

What type of forces contribute to the stability of the DNA double helix?

Which groove of the DNA double helix is wider and more accessible to proteins?

What did the Hershey-Chase experiment in 1952 demonstrate?

Which of the following is true about the shape of DNA bases?

What type of bond is formed between an organic acid and an alcohol in the formation of an ester?

Which of the following is true about the structure of chromosomes?

What is the term for the process by which chromosomes are duplicated and segregated in mitosis?

What are the two ends of a chromosome called?

What is the term for the chromosome regions that do not uncoil after mitosis?

What is the term for the repeating subunits of DNA and histones?

What is the term for the DNA sequence elements needed to produce a chromosome that can be replicated and segregated in mitosis?

What is the term for the chromosome regions that are uncoiled and active in interphase?

What is the term for the DNA sequence elements where DNA replication is initiated?

What are the levels of organization of chromatin?

Which of the following is true about the compaction of chromatin during mitosis?

Which of the following nitrogenous bases is found in both DNA and RNA?

What is the term for the process of DNA replication?

Which end of a nucleotide is the 3' end?

What type of forces contribute to the stability of the DNA double helix?

What is the term for the regions of DNA where replication is initiated?

What type of bond is formed between nucleotides in DNA?

What is the term for the basic unit of DNA and histones?

What did the Hershey-Chase experiment in 1952 demonstrate?

What are the two ends of a chromosome called?

Which groove of the DNA double helix is narrower and less accessible to proteins?

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