Biology GMAS_Unit SB2a. - c_Genetics and Genetic Information

Which of these shows an example of an insertion mutation?

(Hint: Insertions and Deletions cause Frameshifts in the reading)

• A

• B

• C

• D

A model of transcription and a codon chart are shown.

Which amino acid would be coded first from the DNA strand being transcribed?

• Cys

• Phe

• Ile

• Met (Stop)

What components make up the backbone of a DNA molecule?

• Purines and deoxyribose

• Pyrimidines and purines

• Deoxyribose and phosphate groups

• Phosphate groups and pyrimidines

A model of DNA is shown. Which part of the DNA model is most directly associated with the coding of genetic information?

• 
• 
• 
• 

(Unit 1 Concept Question)

A model of two structures that perform cellular processes is shown.

What are the products of the cellular processes in these organelles?

• I: glucose and carbon dioxide

  II: oxygen and water

• I: carbon dioxide and oxygen

  II: glucose and water

• I: oxygen and glucose

  II: water and carbon dioxide

• I: carbon dioxide and water

  II: glucose and oxygen

A DNA moleculeis shown in the diagram. What part of the DNA molecule is represented by the structure labeled 1?

• A nucleotide

• An Amino Acid

• A nitrogenous Base

• A Phosphate

The diagram shown represents part of a DNA molecule. If X represents adenine, what molecule is its complementary base?

• cytosine

• thymine

• guanine

• uracil

(Unit SB3 - Heredity Concept Question)

The diagram below represents DNA replication in which a mutation has occurred at Point X. During the cell cycle, this mutation at Point X can result in the production of a mutated protein in which cell?

• The parent cell only

• one somatic cell only

• one somatic cell and one parent cell

• both somatic cells and the parent cell.

In order to ensure an exact copy of DNA is passed on, replication must occur before

• electron transfer

• mitosis

• protein synthesis

• glycolysis

Which best describes the process that occurs when nuclear DNA codes for a protein in the cytoplasm?

• One strand of the DNA remporarily leasved the nucleus to be translated by a ribosome in the cytoplasm.

• mRNA is transcribed from DNA and leaves the nucleus to be translated by tRNA in the cytoplasm.

• A ribosome makes an RNA copy of DNA in the nucleus, then returns to the cytoplasm for protein synthesis.

• The tRNA copies the DNA in the nucleus, then transports the information to the ribosomes in cytoplasm for protein synthesis.