True or false: RNA is in the shape of a double helix while DNA is a single helix.
False - RNA is a single helix
100
The sequence below is from a strand of DNA.
ATTAGCCGA
What is the complementary strand of DNA?
TAACGGCT
100
A woman develops cancer at the age of 30. The mutation is not in her egg cells. Can she pass this mutation on to her children?
No, because the mutation is not in her gametes.
100
DNA copies itself, but results in DNA with a mutation. Which process went wrong?
DNA replication
200
Which four letters code for the nitrogen bases in DNA?
A, T, C, and G
200
Which four letters does RNA use as code for its nitrogen bases?
A, U, G, and C
200
The sequence below is from a strand of DNA.
GACTTAACCTAT
Write the strand of RNA that would be created during transcription.
CUGAAUUGGAUA
200
A man passed a mutation on to his offspring. What type of cell did the mutation HAVE to be in for that to have happened?
Gamete or sperm.
200
Which process builds proteins using information from tRNA and amino acids?
translation
300
Which nitrogen base pairs with thymine (t) in DNA?
adenine (A) (students only need the letter to get credit)
300
Is the following a strand of RNA or DNA:
ATACGGTAT
And how do you know?
DNA because it uses T instead of U.
300
The following is a sequence of DNA.
AATTAGCCGTT
Write the sequence of the mRNA that would be created through transcription.
UUAAUCGGCAA
300
True or false: a nerve cell has a mutation. The cell mutation is definitely harmful to the person with the mutation.
False; not all mutations are harmful.
300
Which process makes mRNA from DNA?
Transcription
400
Which of the following is the sugar used in DNA: deoxyribose or ribose?
Deoxyribose
400
The following sequence is from a portion of DNA:
ATACGGTAT
Write the sequence that RNA would create from this strand.
UAUGCCAUA
400
The following sequence is from a strand of mRNA.
UUACGCCACUAC
Write the sequence that would be formed by tRNA in the process of translation.
AAUGCGGUGAUG
400
Which of the following best describes the result of a mutation in an organisms DNA?
A. The organism will definitely pass the mutation on to its offspring
B. The organism will better survive natural selection
C. The mutation might cause a change in the organism's phenotype.
D. The mutation will cause death to the organism.
C. The mutation might cause a change in the organism's phenotype.
400
A snake eats a toxic plant that hinders its ability to produce mRNA in transcription. Which of the following is the most likely result?
A. The mRNA builds up in the nucleus of the cell.
B. The ribosomes do not receive the message with the information to build proteins.
C. The nucleus nucleus breaks up into the cytoplasm.
B. The ribosomes do not receive the message with the information to build proteins.
500
DNA is always located in the ______________ of the cell so that it can stay protected.
A. cytoplasm
B. ribosome
C. nucleus
D. double helix
nucleus
500
What process is used to create messenger RNA?
transcription
500
In a molecule of DNA, I have 12 adenine (a) nitrogen bases. If there are no mutations, which of the following will definitely have 12 nitrogen bases in my complementary strand?
A. Cytosine (C)
B. Thymine (T)
C. Uracil (U)
D. Guanine (G).
B. Thymine
500
Every cell in a person's body is mutated as a result of radiation. Can the person pass this mutation on to its offspring?
Yes because every cell, including the gametes, carry the mutation.
500
Which process (DNA REPLICATION, TRANSCRIPTION, OR TRANSLATION) produces the sequence UAU from the sequence ATA?