Ch 6 Life Sci: Question Preview (ID: 24433)


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Who built a model of DNA?
a) Chargaff
b) Franklin
c) Watson and Crick
d) Einstein

Besides bases, what does tRNA carry?
a) proteins
b) fats
c) carbohydrates
d) amino acids

Adenine, thymine, cytosine, and guano are the 4 bases a nucleotide can have
a) true
b) false
c)
d)

Which is not something a nucleotide contains?
a) sugar
b) phosphate
c) base
d) sulfur

A copy of a DNA segment that moves out of the nucleus and into the cytoplasm is called
a) tRNA
b) mRNA
c) rRNA
d) cDNA

The amino acids linked together in ribosomes become
a) proteins
b) ER
c) DNA
d) fats

There are 5 bases that a nucleotide can have.
a) true
b) false
c)
d)

A molecule that is present in all living cells and that contains the info that determines traits is called
a) DNA
b) RNA
c) CIA
d) NBA

Rosalind Franklin found that the amount of adenine always equals the amount of thymine in DNA.
a) true
b) false
c)
d)

DNA is wound around
a) lipids
b) fats
c) proteins
d) ribosomes

A mutation is a change in the number, type, or order of bases.
a) true
b) false
c)
d)

The shape of DNA is called the
a) single helix
b) double helix
c) triple helix
d) twisted ladder

Which of these is NOT a genetic mutation?
a) insertion
b) deletion
c) substitution
d) generation

Genes consist of a string of nucleotides that give the cell information about how to make a specific trait.
a) true
b) false
c)
d)

How many bases make up code for an amino acid?
a) 1
b) 2
c) 3
d) 4

When humans manipulate genes of another organism, that is called
a) genetic engineering
b) genetic fingerprinting
c) genetic goofing off
d) genetic god-playing

A cell organelle composed of RNA and protein that produces proteins
a) nucleus
b) ribosome
c) ER
d) chloroplast

Give the complementary sequence to AGTTG
a) CAGGT
b) TCAAT
c) TCAAC
d) GCATA

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