Genetics -DNA structure, replication, transcription, translation

In dogs, where does DNA replication take place?

• Ribosome

• Nucleus

• Bone marrow

• Cytoplasm

Part of a chromosome is used to code for a specific protein. This section of DNA is known as a(n)

• Gene

• Anti-codon

• Codon

• Phenotype

If RNA from a human was compared with RNA from a lizard, they would both have

• deoxyribose sugar and thymine base

• Ribose sugar and thymine base

• Deoxyribose sugar and uracil base

• Ribose sugar and uracil base

Which of the following is NOT a difference between DNA and RNA

• The four nitrogen bases

• The sugar found in the backbone

• The number of strands

• The type of phosphate

Nitrogen bases are held together by

• Weak covalent bonds

• Strong covalent bonds

• Weak hydrogen bonds

• Strong hydrogen bonds

This enzyme adds RNA to a template strand before DNA nucleotides can be added.

• Helicase

• Primase

• DNA Polymerase

• Ligase

This enzyme breaks weak hydrogen bonds to separate strands of DNA before replication begins.

• Helicase

• Primase

• DNA Polymerase

• Ligase

If a portion of mRNA contains the sequence U-U-U, then the corresponding anti-codon on tRNA is

• C-C-C

• U-U-U

• T-T-T

• A-A-A

During _____________, the cell uses information from messenger RNA to produce proteins.

• Replication

• Transcription

• Translation

• Regurgitation

The sequence of ______ in a DNA molecule determines the protein that will made.

• Bonds

• Enzymes

• Nucleotides

• Deoxyribose sugars