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lov 1 - matching match each term with the correct description: dna gene…

Question

lov 1 - matching
match each term with the correct description:
dna gene protein
a. controls cell behavior
b. instructions for making
c. a section of dna

day 1 - short answer

  1. how do dna and proteins work together in a cell?
  2. why is it important that proteins are made correctly?

day 2 - cell cycle & checkpoints

  1. what is the main job of the cell cycle?

a. make mutations
b. destroy cells
c. control cell growth and division
d. store dna

  1. when does dna get checked before division?

a. after mitosis
b. at checkpoints
c. during apoptosis
d. in the cytoplasm

  1. what is a checkpoint?

a. a mutation
b. a protein
c. a control point that checks dna
d. a chromosome

Explanation:

Response

Day 1 - Matching

Brief Explanations
  • DNA contains all genetic instructions for cell function and protein synthesis, so it controls cell behavior.
  • A gene is a specific section of DNA that codes for a protein.
  • Proteins are the molecules built using the instructions encoded in genes.
Brief Explanations
  1. DNA holds the genetic code (genes) that act as blueprints for proteins. Through transcription (DNA → mRNA) and translation (mRNA → protein), DNA's instructions are used to build proteins, which carry out most cellular functions.
  2. Proteins perform nearly all critical cellular tasks: structural support, enzymatic reactions, cell signaling, and DNA repair. Incorrectly made proteins lose their function, leading to errors in cell processes, disease, or cell death.
Brief Explanations
  1. Cell cycle checkpoints are regulatory stops that verify cell readiness (e.g., undamaged DNA, proper replication) before advancing to the next phase, preventing damaged cells from dividing.
  2. DNA is checked for damage and completeness at key regulatory points during the cell cycle to ensure only healthy cells divide.
  3. A checkpoint is a control mechanism that assesses cell state before allowing cycle progression.

Answer:

  • DNA: A. Controls cell behavior
  • Gene: C. A section of DNA
  • Protein: B. Instructions for protein (corrected intent: the product made from gene instructions)

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Day 1 - Short Answer