BIOSC-101 Lecture Notes - Lecture 11: Interphase, Chromosome, Covalent Bond

10 views3 pages

blushmallard188

21 Dec 2020

School

Diablo Valley College

Department

Biological Science

Course

BIOSC-101

Professor

wyler

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

The presence of two strands accounts for the double helix of dna. Antiparallel - their subunits run in opposite directions. Adenine and guanine are purines (double ring) Cytosine and thymine are pyrimidines (single ring) Dna structure & function you should be able to: Watson and crick introduced the double-helical model for the structure of dna. Because a purine + purine would be too wide and a pyrimidine + pyrimidine would be too narrow. Adenine forms 2 hydrogen bonds with thymine and only thymine. Guanine forms 3 hydrogen bonds with cytosine and only cytosine. A key feature of all nucleic acids is that they have two distinctive ends: the 5" (5- prime) and 3" (3-prime) ends. The two strands are held together by hydrogen bonds (between base pairs) Describe the process of dna replication; include the following terms: antiparallel structure, dna polymerase, leading strand, lagging strand, okazaki fragments, Dna ligase, primer, primase, helicase, topoisomerase, single-strand binding proteins.

Related Questions

1.Which of the following is not true about DNA? a) it is found both in the nucleus and the cytoplasm b)it is double stranded and the standards are connected by hydrogen bonds between the base pairs c) A purine base always pairs with a pyrimidine base to make up the DNA code d) it is the control center for both cell activity and heredity 2.Which of the following represents accurate base pairing in DNA ?a) Adenine to Adenine b)Adenine to Uracil c)Thymine to Cytosine d)Adenine to Thymine 3. Purines and Pyrimidines are found a) DNA only b)RNA only c) A and B d)In proteins 4.The bond that forms between carbohydrates is called a)peptide bond b) ester bond c) glycoside bond d)never ending bone 5. Which of the following does not dissolve readily in water? a)proteins b) amono acids c) steroids d) carbohydrates 6. The following arrangement of amino acids represents what level of structure ? ABACABDD a)Primary b)Secondary c)Tertiary d)Quaternary

cerisedog238

1. Unlike DNA, RNA contains

deoxyribose

a double strand

phosphates

uracil

Nucleic acid structure

2. In transcription, uracil will bond with:

thymine

cytosine

adenine

guanine

Transcription

3. The first team of scientist to document the structure of DNA was:

Franklin and Wilkins

Watson and Crick

Pauling and Chargoff

None of the above

DNA structure

4. Organelles that synthesize protein are:

lysosomes

ribosomes

endoplasmic reticulum

golgi bodies

5. Most of the time in a cell's life, it's DNA is in the form of:

Chromatin

Chromatids

Replicated chromosomes

Spindle fibers

6. Uracil is a nitrogen base that pairs with adenine. Using this information, one could conclude that uracil is a:

Purine

Pyrimidine

Neither a purine or pyrimidine

Not enough information

7. a nucleotide does not consist of a:

polymerase

5-carbon sugar

phosphate group

nitrogen base

8. The genetic code in DNA of an individual depends on the sequence (order) of:

nucleotides

purines only

phosphates

sugars

9. Before a cell divides, it must duplicate its DNA in a process known as:

translation

transformation

transcription

replication

10. The basic unit (building block) of a protein is a (an):

carbohydrate

amino acid

lipid

hydrogen bond

11. Unlike DNA, RNA contains:

deoxyribose

a double strand

phosphates

uracil

12. The structure of DNA was first documented in:

1945

1953

1956

1962

13. In DNA replication, the new molecules produced are:

of unequal length

both assembled in the same direction

built with purines as the backbone

assembled in opposite directions

DNA replication

14. The "backbone" of DNA is composed of:

ribose and phosphates

deoxyribose and phosphates

ribose and uracil

deoxyribose and thymine

DNA structure

15. RNA differs from DNA in which of the following ways?

RNA is single-stranded

RNA contains ribose

RNA does not contain thymine

All of the above

DNA structure

16. Which of the following is NOT required for the transcription process itself?

RNA polymerase

DNA

uracil-containing nucleotides

ribosomes

skyhamster121

Nitrogen and phosphorus are in the same column of the periodic table. They have similar properties in bonding with other molecules because they have the same number of:

We cannot answer this question definitively because there is not enough information.

What I choose are wrong.

BIOSC-101 Lecture Notes - Lecture 11: Interphase, Chromosome, Covalent Bond

Document Summary

Get access

Related Documents

BIOSC-101 Lecture Notes - Lecture 13: Messenger Rna, Dna Replication, Semiconservative Replication

BIOSC-101 Chapter Notes - Chapter 1: Semiconservative Replication, Deoxyribonucleoside, Dna Replication

BIOSC-101 Chapter Notes - Chapter 1: Streptococcus Pneumoniae, The Double Helix, Dna Replication

Related Questions