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DNA
DNA
DNA
DNA
DNA
100
Which of the following is required for DNA replication to occur? 1.DNA helicase 2.DNA ligase 3.DNA polymerase 4.all of the above
4.all of the above
100
what does DNA stand for?
Deoxyribonucleic acid
100
adenine must pair with.....
Thymine
100
what are chromosomes made of?
chromosome are made of both DNA and protein.
100
Chromosomes are paired together based on their: 1.size 2.banding pattern 3.centromere location 4.all of the above
4.all of the above
200
The two men who established the structure of DNA are: 1.Berkeley and Fry 2.Einstein and Gilbert 3.Darwin and Lamarke 4.Watson and Crick
4.Watson and Crick
200
Guanine must pair with.....
Cytosine
200
Okazaki fragments form on the: 1.lagging strand 2.leading strand 3.base-pairs 4.5' end
1.lagging strand
200
How many different amino acids are there? 1.3 2.20 3.100 4.an infinite number
2.20
200
DNA is called the "blueprint of life" because: 1.it contains the plans for building an organism 2.it is like a fingerprint 3.it can relay messages to other cells 4.it has a bright blue color
1.it contains the plans for building an organism
300
The "rungs" of the DNA ladder are made of: 1.phosphates and bases 2.sugars 3.sugars and phosphates 4.bases
4.bases
300
The twisted ladder shape of DNA is called a: 1.hydrogen twist 2.deoxyribose flip 3.double helix 4.double membrane
3.double helix
300
Down's Syndome occurs when an invidual has: 1.an extra chromosome 21 2.a missing chromosome 3.an extra set of homologs 4.haploid cells
1. an extra chromosome 21
300
purines only pair with ......
pyrimidines
300
Translation begins: 1.at the replication fork 2.on the lagging strand 3.at the start codon 4.in the nucleus
3.at the start codon
400
The process by which RNA is made from DNA is called: 1.translation 2.transcription 3.replication 4.pagination
2.transcription
400
The three nucleotide sequence on RNA is called a: 1.tRNA 2.codon 3.triplet 4.gene
2.codon
400
A gene is: 1.a segment of DNA that codes for a protein 2.a set of homologous chromosomes 3.a molecule within DNA 4.a type of pants
1.a segment of DNA that codes for a protein
400
The sugar found in DNA is: 1.equal 2.deoxyribose 3.ribose 4.glucose
2.deoxyribose
400
The three nucleotides found in DNA will code for a single: 1.protein 2.amino acid 3.messenger RNA 4.sugar
2.amino acid
500
A nucleotide consists of: 1.a nitrogen base 2.a nitrogen base and a sugar 3.a nitrogen base, sugar, and phosphate 4.two nitrogen bases, a sugar, and a phosphate
3.a nitrogen base, sugar, and phosphate
500
Amino acids are joined together into a protein chain by which of the following? 1.transfer RNA 2.DNA polymerase 3.hydrogen bonds 4.messenger RNA
1.transfer RNA
500
The purpose of mitosis is to: 1.create new cells 2.copy DNA 3.cellular repair 4.reproduction
1.create new cells
500
Which of the following is NOT a necessary component of translation? 1.anticodon 2.mRNA 3.ligase 4.amino acid
3.ligase
500
The 5' and 3' numbers are related to the: 1.length of the DNA strand 2.carbon rings in sugar 3.the number of phosphates 4.the base pair rule
2.carbon rings in sugar