dna, protein synthesis and mutations

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

Tags

NGSS.HS-LS3-2

Are all mutations bad?

• Yes
• No

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?

• Yes, because any change to the DNA is passed on to the offspring
• Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.
• No. Only mutations that occur in the gametes (sex cells) are passed on to the offspring
• Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

RNA is read in sections called:

• Triplets
• Genes
• Codons
• Genes

Transcription is a process that in eukaryotic cells takes place in the:

• Nucleus
• Cytoplasm
• Golgi Apparatus
• Rough E.R.

Translation is a process in eurkaryotic cells takes place in the:

• Cytoplasm
• Nucleus
• Nucleolus
• Golgi Bodies

Tags

NGSS.HS-LS1-6

The main function of tRNA is to...

• carry a message that, when translated, forms proteins
• form a portion of ribosomes
• string together complementary RNA and DNA strands
• bring amino acids from the cytoplasm to the ribosomes