BIOL 1201 EXAMS: LATEST A+ GUIDE WITH ESSENTIAL
QUESTIONS AND ANSWERS
The phosphate group is connected to which position on the deoxyribose?
5'
In the double helix of DNA, Adenine is always opposite?
Thymine
What kind of bonds hold the two strands of DNA together in the double helix?
Hydrogen
How are genetic data encoded in DNA?
By the sequence of the nucelotides
What is transcription?
Production of RNA and DNA
Transcription occurs in the nucleus?
Depends on the organism
All of these are enzymes employed in DNA replication except?
RNA Polymerase
Which enzyme produces the most transcript in transcription?
RNA Polymerase
The expression of DNA or RNA is controlled by factors. What is a factor?
A protein that attaches to DNA or RNA and helps
What is the first product of transcription in eukaryotes?
Pre-RNA
What is removed when pre-RNA is converted to mRNA?
Introns
What is translation?
Production of polypeptides from an mRNA template
Translation occurs in the cytoplasm? T/F
, True
tRNA does what?
Carries amino acids to the ribosomes-mRNA complex
What is the purpose of DNA replication?
To make more DNA for cell division
What is the purpose of mitosis?
To make daughter cells exactly like the parent cells
If humans have 23 unique chromosomes, how many chromosomes does a human liver cell
have?
46
Why does an organism's liver cell have 2 copies of each chromosome?
One set is inherited from the organism's mother, and one from its father
What's a general term used by geneticist for a brain or muscle cell?
A somatic cell
In mitosis, there are chromosomes and chromatids. What is a chromatid?
A copy of a chromosome
During anaphase of mitosis, human cells have 92 chromosome. How can that be?
Chromatids separate and form discrete chromosomes in anaphase
What is the purpose of Meiosis?
To make sex cells
What happens to the gametes after they are produced?
They join with other gametes in reproduction or do nothing
A diploid cell has how many copies of unique chromosomes?
2
Gametes possess how many copies of unique chromosomes?
1
Human cells have autosomes and...
QUESTIONS AND ANSWERS
The phosphate group is connected to which position on the deoxyribose?
5'
In the double helix of DNA, Adenine is always opposite?
Thymine
What kind of bonds hold the two strands of DNA together in the double helix?
Hydrogen
How are genetic data encoded in DNA?
By the sequence of the nucelotides
What is transcription?
Production of RNA and DNA
Transcription occurs in the nucleus?
Depends on the organism
All of these are enzymes employed in DNA replication except?
RNA Polymerase
Which enzyme produces the most transcript in transcription?
RNA Polymerase
The expression of DNA or RNA is controlled by factors. What is a factor?
A protein that attaches to DNA or RNA and helps
What is the first product of transcription in eukaryotes?
Pre-RNA
What is removed when pre-RNA is converted to mRNA?
Introns
What is translation?
Production of polypeptides from an mRNA template
Translation occurs in the cytoplasm? T/F
, True
tRNA does what?
Carries amino acids to the ribosomes-mRNA complex
What is the purpose of DNA replication?
To make more DNA for cell division
What is the purpose of mitosis?
To make daughter cells exactly like the parent cells
If humans have 23 unique chromosomes, how many chromosomes does a human liver cell
have?
46
Why does an organism's liver cell have 2 copies of each chromosome?
One set is inherited from the organism's mother, and one from its father
What's a general term used by geneticist for a brain or muscle cell?
A somatic cell
In mitosis, there are chromosomes and chromatids. What is a chromatid?
A copy of a chromosome
During anaphase of mitosis, human cells have 92 chromosome. How can that be?
Chromatids separate and form discrete chromosomes in anaphase
What is the purpose of Meiosis?
To make sex cells
What happens to the gametes after they are produced?
They join with other gametes in reproduction or do nothing
A diploid cell has how many copies of unique chromosomes?
2
Gametes possess how many copies of unique chromosomes?
1
Human cells have autosomes and...
