Unit 4 Review 25.26

What is a codon?

• a sequence of 3 amino acids
• a sequence of three nitrogen bases
• a sequence of 3 enzymes
• a sequence of 3 proteins

Which type of RNA delivers the genetic code to the ribosome?

• tRNA
• mRNA
• rRNA
• tmRtmRNA

Which of these is part of the description of protein?

• a folded chain of amino acids
• a folded chain of carbohydrates
• a branched chain of fatty acids
• a branched chain of nucleic acids

Tags

NGSS.MS-LS3-1

Which most directly affects the sequence of amino acids in a protein?

• the DNA in the nucleus of the cell
• the amino acids found in the cytoplasm
• the type of cell in which the protein is made
• the region of the cell in which the protein is made

Tags

NGSS.HS-LS1-1

How many amino acids can be represented by a single 3-base DNA sequence?

• 1
• 3
• 6
• 8

DNA codes for __________ which determine ___________

• mRNA, tRNA
• mRNA, ribosomes
• proteins. traits
• proteins, peptide bonds

Tags

NGSS.HS-LS1-1

Which correctly outline gene expression?

• DNA --> mRNA --> rRNA
• DNA --> tRNA --> protein
• DNA --> mRNA --> protein
• DNA --> amino acid --> protein

Tags

NGSS.HS-LS1-1

Which of the following best defines a gene?

• A diploid cell containing two sets of chromosomes
• A unit made up of chromosomes that control for a specific trait
• A segment of DNA that codes for a particular protein
• All the other answers are correct.

Tags

NGSS.HS-LS3-1

What is the difference between DNA and RNA

• DNA has uracil and RNA has thymine
• DNA is involved in transcription and RNA is involved in translation
• DNA contains thymine and RNA contains uracil
• DNA is made of nucleotides and RNA is not

What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?

• CTA-ATG-TCT-AAT-GTA
• GAU-UAG-UGA-UUA-GUT
• CUA-AUG-UCU-AAU-GUA
• CAT-ACA-TAC-ATA-TAG
  

Tags

NGSS.HS-LS1-1