UNIT 6 REMEDIATION

Where does protein synthesis take place?

• mitochondrion

• nucleus

• ribosome

• vacuole

A specific genetic disorder is caused by nondisjunction. Which statement describes how the genetic disorder occurs?

• A problem with RNA replication leads to gametes with extra chromosomes.

• A problem with chromosome separation leads to gametes with damaged chromosomes.

• Incomplete DNA replication leads to gametes with half the usual number of chromosomes.

• Incomplete chromosome separation leads to gametes with an abnormal number of chromosomes.

A mutation present in a parent’s genetic code impacts offspring. Which statement most likely describes the mutation?

• The mutation can be recognized and repaired by enzymes.

• The mutation is observed in the somatic cells of the parent.

• The mutation changes a base without changing an amino acid.

• The mutation alters the function of the protein made by the gene.

Which molecule is synthesized during transcription?

• DNA

• mRNA

• rRNA

• tRNA

What kind of mutation is shown in the picture?

• deletion

• duplication

• inversion

• translocation

Which labels correctly complete the diagram?

• Y is replication, and Z is translation.

• Y is translation, and Z is replication.

• Y is transcription, and Z is translation.

• Y is translation, and Z is transcription.

A heterozygous green pea plant is crossed with a yellow pea plant. Half the offspring are green and half are yellow. What type of inheritance pattern is this?

• codominance

• complete dominance

• incomplete dominance

• sex-linked inheritance

Blue flowers are dominant over yellow flowers. The genotype of a blue-flowered plant is:

• BB

• Bb

• bb

• BB or Bb

Which statement best describes how organisms use DNA and amino acids to synthesize a protein?

• DNA is transcribed into mRNA, which is translated by the ribosome to produce an amino acid chain.

• DNA is translated into mRNA, which is transcribed by the ribosome to produce an amino acid chain.

• Amino acids are transcribed into mRNA, which is translated in the nucleus to produce a molecule of DNA.

• Amino acids are translated into mRNA, which is transcribed in the nucleus to produce a molecule of DNA.

A section of DNA in a cell is altered. Which mutation is being illustrated in the DNA section shown?

• deletion

• duplication

• insertion

• nondisjunction