3-1 Asking Questions Review

How are DNA and chromosomes related?

• DNA is made of many chromosomes

• Chromosomes are made of many DNA strands

• Chromosomes are made of one DNA strand

How are DNA and genes related?

• DNA is instructions for building genes

• DNA is a part of a gene

• There are many DNA strands in a gene

• Genes are parts of DNA

Which of the following contain genetic instructions for your cells? Select all that apply.

• DNA

• genes

• mRNA

• carbohydrates

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Which cells contain genetic instructions? Check all that apply.

• skin

• muscle

• blood

• nerve

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Which living things contain DNA? Choose all that apply.

• Plants

• People

• Lions

• Worms

True or False? All cells in all living things contain genetic information (DNA or RNA).

• True, all species need instructions to grow, maintain, and reproduce.

• False, only complex species contain DNA

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DNA in a cell provides instructions for...

• building fats from the food you eat.

• building proteins from chains of amino acids.

• breaking down carbohydrates to digest them.

• building traits.

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What can a protein do in a cell? Select all that apply.

• Provide structure

• Complete processes (ex: movement)

• Provide instructions to build DNA

In step 1 of building a protein, what occurs during transcription?

• A tRNA molecule is built from the DNA strand.

• An mRNA molecule is built from the DNA strand.

• Chains of amino acids are built to make mRNA.

• tRNA brings amino acids to the ribosome.

In the process of building a protein, what occurs in translation?

• tRNA moves to the ribosome, rRNA with a matching codon brings an mRNA, and a chain is made to form a protein.

• mRNA moves to the ribosome, tRNA with a matching codon brings the whole protein based on the codon.

• mRNA moves to the ribosome, tRNA with a matching codon brings amino acids in specific order, and a chain is made to form a protein.

• Amino acids attach to the nucleus in random order, which forms a protein.