MODULE 2_ REVIEW DAY 4

Which is TRUE about the difference between translation and transcription process involved in protein synthesis?

• Translation converts the information in tRNA into a sequence of amino acids that make a protein while transcription uses the order of nucleotides in DNA which determines the order of nucleotides in messenger RNA.

• Translation converts the information in rRNA into a sequence of amino acids that make a protein while transcription uses the order of nucleotides in DNA which determines the order of nucleotides in messenger RNA.

• Translation converts the information in messenger RNA into a sequence of amino acids that make a protein while transcription uses the order of nucleotides in DNA which determines the order of nucleotides in messenger RNA.

• Transcription converts the information in messenger RNA into a sequence of amino acids that make a protein while translation uses the order of nucleotides in DNA which determines the order of nucleotides in messenger RNA.

The following statements are correct about the importance of protein synthesis EXCEPT

• It causes formation of cancer cells.

• It helps repair and build body tissues.

• It helps create a polypeptide- a protein made out of a chain of amino acids.

• It is the basis of expression of hereditary characteristics in both structure and form.

Which is CORRECT about the passing of information of the DNA from one cell to another?

• The DNA in the chromosomes are then copied in a process called DNA replication.

• The DNA in the chromosomes are then copied in a process called RNA translation.

• The DNA in the chromosomes are then copied in a process called RNA transcription.

• none of these

When does translocation occur?

• It occurs when a piece of chromosome is deleted.

• It occurs when a piece of chromosome is replicated.

• It occurs when a piece of chromosome is being replaced.

• It occurs when a piece of chromosome breaks off and attaches to another chromosome.

Mutation may be induced by factors called_____________.

• allergens

• mutagens

• syndrome

• none of these

It is a permanent change in the DNA sequence that makes up a gene.

• chromosomal mutation

• gene mutation

• karyotyping

• none of these

Which is the CORRECT mRNA codon of GTA?

• CAU

• GUA

• ACU

• UAG

Which is CORRECT about deletion of chromosomes?

• A small broken fragment may become lost

• The fragment may become turn around or rejoin the chromosome.

• The broken fragment may become attached to the end of another chromosome

• none of these

Which is TRUE about inversion of chromosomes?

• A small broken fragment may become lost

• The fragment may become turn around or rejoin the chromosome.

• The broken fragment may become attached to the end of another chromosome

• The production of one or more copies of a gene or region of a chromosome.

Which condition shows sign of having Cri du chat?

• An individual have normal intelligence or mild mental retardation, with poor or excessive language skills.

• An individual have a characteristic hand appearance with clenched hands and overlapping fingers.

• An individual have wide-set eyes, a small head and jaw, are moderately to severely mentally retarded, and very short.

• An individual have decreased muscle tone, stockier build, asymmetrical skull, slanting eyes and mild to moderate mental retardation.