Central Dogma Honors

Genes code for

• Enzymes

• Polypeptides

• RNA

• All of the above

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

How does RNA differ from DNA?

• RNA contains uracil instead of Thymine and it is usually single-stranded.

• RNA contains uracil instead of Thymine and it is usually double stranded

• RNA contains thymine instead of uracil and it is single stranded

• RNA contains uracil instead of cytosine

Which of the following molecules transfers information from the nucleus to the cytoplasm?

• DNA

• mRNA

• tRNA

• Proteins

The adapters that allow translation of the four-letter nucleic acid language into the 20 - letter protein language are called

• transfer RNAs

• ribosomal RNAs

• messenger RNAs

• ribosomes

Which of the following statements about the flow of genetic information is true?

• Protein encode information that is used to produce other proteins of the same amino acid sequence.

• RNA encode information that is translated into DNA and DNA encode information that is translated into proteins.

• DNA encodes information that is translated into RNA and RNA encodes information that is translated into proteins.

• None of the above

Tags

NGSS.HS-LS1-1

The process of transcription synthesizes

• Transfer RNA

• Messenger RNA

• ribosomal RNA

• Proteins

• Transfer RNA, messenger RNA and ribosomal RNA

Termination of transcription involves a

• Stop codon

• terminator sequence

• Series of As

• None of the above

How can DNA which is made up of only four different bases encode the information necessary to specify the workings of an entire organism?

• DNA mol is extremely long

• DNA molecules from codons of three bases that code for amino acids

• The genetic code is redundant and not ambigious

• DNA can be replicated with low error rates

• All of the above

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

The stop codons code for

• no amino acid

• Methionine

• Glycine

• DNA binding protein

How many codons specify amino acids?

• 20

• 23

• 60

• 61