A change in a gene or chromosome is called a...

• gene.

• mutation.

• genetic shift.

• chromosome.

Tags

NGSS.HS-LS3-2

A segment of DNA that codes for the production of a specific protein is called a ...

• gene.

• mutation.

• genetic shift.

• chromosome.

Tags

NGSS.HS-LS1-1

Type of RNA that copies the code from the DNA in the nucleus and carries it to the ribosome in the cytoplasm

• ribosomal RNA

• tRNA

• mRNA

• chromosomal RNA

Type of RNA that carries amino acids and adds them to the growing protein chain

• ribosomal RNA

• tRNA

• mRNA

• chromosomal RNA

Which statement correctly shows the nitrogen base pairing rule for DNA?

• Adenine bonds with Cytosine AND Guanine bonds with Thymine (A-C and G-T)

• Adenine bonds with Guanine AND Cytosine bonds with Thymine (A-G and C-T)

• Adenine bonds with Thymine AND Guanine bonds with Cytosine (A-T and C-G)

• Adenine bonds with Uracil AND Guanine bonds with Cytosine (A-U and C-G)

Which statement correctly shows the nitrogen base pairing rule for RNA?

• Adenine bonds with Cytosine AND Guanine bonds with Thymine (A-C and G-T)

• Adenine bonds with Guanine AND Cytosine bonds with Thymine (A-G and C-T)

• Adenine bonds with Thymine AND Guanine bonds with Cytosine (A-T and C-G)

• Adenine bonds with Uracil AND Guanine bonds with Cytosine (A-U and C-G)

How can mutations affect protein synthesis in cells?

• Mutations never affect protein synthesis.

• Mutations in body cells can be passed to offspring.

• Mutations can cause a cell to produce an incorrect protein.

• Only individuals with mutations allowing them to shoot lasers from their eyes go on to star in their own hit movie.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

What is the genetic code?

• An ancient manuscript discovered by scientists that reveals the secret of the existence of aliens on our planet.

• The process by which the number of chromosomes is reduced by half to produce sex cells.

• A hit song from 1953 by "The Watson and Crick Duo" describing the structure of the DNA molecule.

• The sequence of nitrogen bases along a gene that codes for the production of a specific protein.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is the FIRST step of protein synthesis?

• tRNA carries amino acids to the ribosome and adds them to the growing protein chain.

• The ribosome reaches a "stop" codon and releases the finished protein.

• Translation - A ribosome attaches to the mRNA and reads three nitrogen bases (codon) at a time.

• RNA Polymerase "unzips" a strand of DNA to reveal the genetic code.

• Transcription - New nitrogen bases line up along one half of the exposed DNA strand. mRNA is formed and carries the code from the DNA in the nucleus to the ribosome in the cytoplasm

Stays in the nucleus

• DNA

• RNA

• Both