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__ is when the mRNA is decoded by tRNA so that amino acids can line up?
interphase
photosynthesis
replication
transcription
translation
What did James Watson do?
Discovered that replication is semi-conservative
Identified the location of the nuclear pores
Discovered that thymine always bonds with adenine
Took x ray pictures of DNA
Discovered that DNA is a double helix
Which of the following might be a rung on DNA?
Adenine and uracil
Ribose and deoxyribose
Deoxyribose and thymine
Thymine and uracil
Cytosine and guanine
Which of these is NOT a reason why Mendel used peas?
Easy to cross pollinate
Many observable traits
Easily observed traits
Quick reproduction
Contain only eggs or sperm
Because adenine always bonds with thymine, we call adenine and thymine __ base pairs.
expository
mandatory
supplementary
explanatory
complementary
What happens when a true-breeding plant self-pollinates?
All of the above
None of its offspring have the same traits as the parent.
Some of its offspring have the same traits as the parent.
One of its offspring has the same traits as the parent.
All of its offspring have the same traits as the parent.
What did Francis Crick do?
Discovered that replication is semi-conservative
Identified the location of the nuclear pores
Discovered that thymine always bonds with adenine
Took x ray pictures of DNA
Discovered that DNA is a double helix
A plant with two dominant OR two recessive alleles is said to be
Cross pollinating
heterozygous
Self pollinating
alleles
homozygous
What is a phenotype?
The alleles contained by the organism
The way an organism feels
A dominant gene
A group of 5 alleles
The way an organism looks
What does DNA do?
All of the above
Controls what moves in and out of cells
Contains the enzymes responsible for digestion
Produces proteins
Carries the blueprint for making proteins
__ is when one gene of DNA is copied to make mRNA?
mitosis
photosynthesis
translation
replication
transcription
A string of nucleotides that has the instructions for a certain trait is a?
homozygous
cell
dominant
chloroplast
gene
In Mendel’s parent cross, he tested a true breeder long with a true breeder short. The offspring were
25% tall, 50% medium, 25% short
75% tall, 25% short
100% medium
75% short, 25% tall
100% tall
2 bases on DNA are held together by?
gravity
A nitrogen bond
A peptide bond
Amino acids
A hydrogen bond
What did Maurice Wilkins do?
Discovered that DNA is a double helix
Discovered that cytosine always bonds with guanine
Discovered the chemical structure of the phosphate molecule
Used the word “cell” when looking through a microscope
Took x ray pictures of DNA
What did Chargraff do?
He discovered that DNA is a double helix
He named the peptide bonds that connect amino acids
He took x ray pictures of DNA
He discovered that replication is semi-conservative
He discovered that adenine always bonds with thymine
Which of the following might be a rung on DNA?
Cytosine and thymine
Adenine and uracil
Deoxyribose and phosphate
Ribose and phosphate
Adenine and thymine
Which of these might be on the sides of the DNA ladder?
Amino acids
ribose
adenine
uracil
deoxyribose
What did Rosalind Franklin do?
Discovered that DNA replication is semi-conservative
Discovered that mRNA contains ribose sugar instead of deoxyribose
Determined that DNA is a double helix
Determined that Adenine always bonds with Thymine
Took x ray pictures of DNA