10. 2.1 DNA The molecule

What are the three main parts of a nucleotide?

• Phosphate group, Ribose sugar, Nitrogen-rich base

• Phosphate group, Deoxyribose sugar, Nitrogen-rich base

• Phosphorus group, Deoxyribose sugar, Nitrogen-poor base

• Phosphorus group, Ribose sugar, Nitrogen-poor base

Which bases form complementary base pairs in DNA?

• A-T and C-G

• T-A and G-C

• A-C and T-G

• A-G and T-C

What is the function of chromosomes in the human body?

• Produce proteins

• Store energy

• Contain genetic material

• Regulate body temperature

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many chromosomes are found in human body cells?

• 92

• 69

• 23

• 46

What are the sex chromosomes in males and females?

• XX in males, YX in females

• XY in males, XX in females

• XY in both males and females

• XX in both males and females

What is the term for chromosomes that are the same and inherited from each parent?

• Homologous chromosomes

• Heterologous chromosomes

• Sex chromosomes

• Autosomes

Where are the genes for particular characteristics located on homologous chromosomes?

• At the same location

• At the telomere

• At the centromere

• At different locations

Tags

NGSS.HS-LS3-1

What determines the unique characteristics of an organism?

• Proteins

• Genes

• Chromosomes

• DNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which organisms have slightly different versions of genes for keratin protein production?

• Dogs and birds

• Cats and snakes

• Dogs and snakes

• Dogs and cats

Tags

NGSS.MS-LS4-4

What is the role of DNA in protein synthesis?

• It provides the energy needed for protein synthesis

• It provides the template for the sequence of amino acids

• It directly forms the protein structure

• It has no role in protein synthesis

Tags

NGSS.HS-LS1-1