Dna Replication Flashcards
(29 cards)
What does DNA stand for?
Deoxyribonucleic Acid
True or False: DNA is a single-stranded molecule.
False
What are the building blocks of DNA called?
Nucleotides
Fill in the blank: The four nitrogenous bases in DNA are adenine, thymine, cytosine, and ______.
guanine
Which base pairs with adenine in DNA?
Thymine
What shape is the DNA molecule commonly described as?
Double helix
True or False: DNA replication is a conservative process.
False
DNA profile
A bar code pattern formed from DNA which is unique to each organism
What is the function of DNA?
To store genetic information
Multiple choice: Which of the following is NOT a function of DNA? A) Genetic information storage B) Protein synthesis C) Energy production
C) Energy production
What process involves the copying of DNA to RNA?
Transcription
Fill in the blank: The process of translating RNA into protein is called ______.
Translation
True or False: DNA is found in both the nucleus and the cytoplasm of eukaryotic cells.
False
What is a gene?
A segment of DNA that codes for a protein
What is the primary structure of DNA composed of?
A sugar-phosphate backbone and nitrogenous bases
Which scientist is known for discovering the structure of DNA?
James Watson and Francis Crick
Fill in the blank: The Double Helix model of DNA was proposed in _____ (year).
1953
True or False: The sequence of bases in DNA determines the genetic code.
True
What is the difference between DNA and RNA?
DNA contains deoxyribose sugar; RNA contains ribose sugar.
Multiple choice: Which type of RNA is responsible for carrying amino acids to the ribosome? A) mRNA B) tRNA C) rRNA
B) tRNA
What is the process by which DNA makes a copy of itself?
Replication
Fill in the blank: The enzyme that unwinds the DNA double helix during replication is called ______.
helicase
True or False: Mutations in DNA can lead to genetic disorders.
True
What are the three components of a nucleotide?
A phosphate group, a sugar, and a nitrogenous base
