Genetics and heredity Unit 6

THis technique is called

• chromatography

• amino acid sequence

• gel electrophoresis

• DNA sequencing

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NGSS.HS-LS3-1

THis technique is used to separate fragments of DNA based on

• sequence

• size: large at top, small go to bottom

• size: large go to bottom, small stay at the top

• weight

This technique is called _______ and is used to separate _______

• chromatography / DNA fragments

• electrophoresis/ pigment molecules

• chromatography / pigment molecules

• electrophoresis/ DNA fragments

Genetic Diversity is important for which of the following reasons?

• disrupts the stability of ecosystems

• having identical organisms ensures a healthy ecosystem

• having many alleles present in a population increases survival chances

• cloning organisms is the best way to sustain a population

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NGSS.HS-LS3-2

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In the double stranded DNA molecule, which bases pair together?

• T:A and C:U

• T:A and C:G

• T:U and C:G

• C:T and A:U

In protein synthesis, DNA must first be copied into which molecule? (transcription)

• DNA is replicated before division in the nucleus

• DNA is copied into amino acids in the ribosome

• DNA is copied into mRNA in the nucleus

• mRNA is copied into amino acids at the ribosomes

In protein synthesis, the mRNA is then used as

• a template in the nucleus

• a template to make more DNA

• mRNA is used to assemble amino acids at the ribosome

• mRNA is used as a template for DNA copying

Which of the following shows the relationship correctly

• Genes are a segment of DNA that are transcribed to mRNA and translated into amino acids to make a protein

• Genes are a segment of DNA that are transcribed to amino acids and translated into mRNA to make a protein

• chromosomes are segments of DNA that code for proteins

• there are several chromosomes on one gene

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NGSS.HS-LS1-1

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Which of the following is correct?

• genes are made of DNA. There are several genes on one chromosome, there are several chromosomes in the nucleus

• proteins are made of DNA. There are several proteins on one chromosome, there are several chromosomes in the nucleus

• DNA is made of proteins that make up chromosomes

• genes are proteins that code for DNA sequences

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NGSS.HS-LS3-1

Which of the two organisms likely have the most similar amino acid sequence?

• Tuatara and bird

• snake and crocodile

• bird and crocodile

• crocodile and lizard

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NGSS.HS-LS4-1

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