Unit 6 SOL (DNA, RNA, Mitosis, Meiosis)

One strand of DNA could be as long as a football field if it were stretched out lengthwise. One of the factors allowing DNA to fit inside the nucleus of a cell is its ability to -

• denature from the effect of an enzyme

• break apart into separate genes

• extend to form very long, thin molecules

• coil tightly around associated proteins

According to this table, a codon AGC is the code for which amino acid?

• Cysteine (Cys)

• Leucine (Leu)

• Serine (Ser)

• Tyrosine (Tyr)

The triplet code of bases for RNA may be represented by all of the following except —

• CGG

• CGT

• CGU

• CGA

This chart compares the base sequences of homologous segments of DNA from three primates. Based on this information, how many differences in the resulting amino acid sequences would you expect to find between humans and chimpanzees?

• 2

• 3

• 4

• 6

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NGSS.HS-LS1-1

The picture shows an x-ray diffraction of DNA. The x-ray diffraction of DNA led to the idea that DNA —

• is a very long molecule

• can copy itself

• contains paired bases

• is a double helix

Tags

NGSS.HS-LS1-1

The parts of DNA that provide the code for proteins are the —

• phosphates

• nitrogenous bases

• sugars

• hydrogen bonds

Tags

NGSS.HS-LS1-1

Which of these is most responsible for carrying coded information from the nucleus?

• mRNA

• The ribosomes

• ATP

• The cell membrane

Tissue samples taken from the heart and stomach of a grasshopper would be expected to have the same —

• cell shape

• DNA

• metabolic rates

• cell size

Tags

NGSS.HS-LS1-1

Which of the following would most likely change the current classification of two closely related flower species to a single species?

• The discovery of a new, related species

• The collection of seeds from each species

• An analysis of photosynthesis for each species

• An analysis of the DNA sequence of each species

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-1

NGSS.HS-LS4-5

Which of these will complete the mRNA strand matched to DNA?

• AUG

• CAG

• GUC

• UAC

Tags

NGSS.HS-LS1-1