Cell Differentiation Quiz

As unspecialized cells mature, what controls their development into specific cell types?

• The rate at which the cells grow.

• The genes expressed within the cells.

• The nutrients available to the cells.

• The age of neighboring cells.

Tags

NGSS.HS-LS1-4

Which of the following best represents the life cycle of a frog as shown in the model?

• Egg → Embryo → Tadpole (early stage) → Tadpole (late stage) → Froglet → Frog

• Frog → Froglet → Tadpole (late stage) → Tadpole (early stage) → Embryo → Eggs

• Frog → Eggs → Embryo → Tadpole (early stage) → Tadpole (late stage) → Froglet → Frog

• Froglet → Frog → Eggs → Embryo → Tadpole (early stage) → Tadpole (late stage)

What is the amino acid sequence that will be translated from the mRNA sequence 5' UGC UAC AGA ACC 3'?

• Threonine - Isoleucine - Serine - Tryptophan

• Cysteine - Tyrosine - Arginine - Threonine

• Serine - Methionine - Tyrosine - Tryptophan

• Proline - Arginine - Histidine - Arginine

As the tadpole grows, some of these turn ______, removing tadpole traits. What is the correct term to fill in the blank?

• genes

• on

• chromosomes

• off

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-1

During which phase of the cell cycle do DNA-copying errors most likely occur?

• S phase

• G₁ phase

• G₂ phase

• M phase

Tags

NGSS.HS-LS3-2

A DNA mutation results in a protein that is the same as the initial protein synthesized before the mutation. What statement BEST explains this outcome?

• One amino acid substitution does not affect protein synthesis.

• Different codons can be translated into the same amino acid, so some mutations do not affect protein synthesis.

• Only mutations that occur at the chromosomal level change protein function.

• Amino acids have similar functions, so their corresponding proteins are unaffected by mutations.

Tags

NGSS.HS-LS3-2

A diagram of the steps in the production of a protein is shown. Which description identifies the purpose of Step A in this process?

• To correct mutation in the DNA sequence.

• To produce an exact copy of the DNA molecule.

• To copy the DNA of a gene sequence onto a strand of mRNA.

• To assist in the folding of a protein.

Tags

NGSS.HS-LS1-1

A DNA sequence of a gene reads: ATG CCG ATT CCC GGG CGA After being exposed to radiation, the sequence reads: ATG CCG ATT CCG GGG CGA Which type of mutation occurred?

• Deletion

• Insertion

• Inversion

• Substitution

Tags

NGSS.HS-LS3-2

Which of the following is NOT a component of DNA?

• Deoxyribose sugar

• Phosphate

• Ribose sugar

• Nitrogenous base

While other genes that are needed for the tadpole to develop into a frog are turned ______. What is the correct term to fill in the blank?

• on

• off

• active

• silent

Tags

NGSS.HS-LS1-4