Gene Expression and Regulation

What is the molecule of hereditary information of cells?

• Protein

• DNA

• RNA

• Ribosome

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the three types of RNA involved in protein synthesis?

• Messenger RNA (mRNA), Transfer RNA (tRNA), Ribosomal RNA (rRNA)

• Deoxyribose RNA, Thymine RNA, Uracil RNA

• Protein RNA, Enzyme RNA, Structural RNA

• None of the above

Messenger RNA (mRNA) carries the code for protein synthesis from DNA to ________.

• ribosomes

• mitochondria

• nucleus

• lysosomes

Transfer RNA (tRNA) carries amino acids to the ribosomes and decodes the nucleotide information to ________.

• amino acids

• lipids

• carbohydrates

• nucleotides

Ribosomal RNA (rRNA) and proteins form ________ where the synthesis of proteins occurs.

• ribosomes

• mitochondria

• nuclei

• lysosomes

What is the main structural difference between DNA and RNA in terms of sugar?

• DNA has ribose, RNA has deoxyribose

• DNA has deoxyribose, RNA has ribose

• Both have ribose

• Both have deoxyribose

In RNA, the base thymine (found in DNA) is replaced by ________.

• uracil

• adenine

• guanine

• cytosine

What is the correct flow of genetic information in a cell?

• Protein ==> RNA ==> DNA

• DNA ==> RNA ==> Proteins

• RNA ==> DNA ==> Proteins

• Proteins ==> DNA ==> RNA

What is the process called where DNA is used to synthesize RNA?

• transcription

• replication

• translation

• mutation

What is the synthesis of RNA using DNA as a template called?

• Translation

• Transcription

• Replication

• Mutation