Biology Keystone Final Review

DNA consists of repeating subunits called

• nucleotides
• amino acids
• fatty acids
• monosaccharides

What base is unique to DNA?

• thymine
• uracil
• cytosine
• guanine

All nucleotides of DNA and RNA contain

• uracil
• thymine
• deoxyribose
• phosphate group

DNA is in the shape of a 

• double helix
• clover leaf
• single strand
• ice cream cone

What type of RNA carries genetic info from the nucleus to ribosomes?

• mRNA
• tRNA
• rRNA
• snRNA

Alleles for 2 different traits found on the same chromosome are said to be

• linked
• autosomal
• recessive
• dominant

Tags

NGSS.HS-LS3-1

Chromosomes split during ___ of mitosis

• anaphase
• metaphase
• prophase
• telophase

Tags

NGSS.HS-LS1-4

During prophase I of meiosis, chromosomes can switch sections of DNA in a process called

• crossing over
• synapsis
• metaphase
• cytokinesis

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Since Darwin's time, knowledge of heredity has lead to 

• addition of Lamarck's use and disuse theory
•  increased support for the theory of natural selection
• disagreement with Mendel
• elimination of all evolution theories

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-1

NGSS.HS-LS4-4

What two alleles for blood type show codominance

• A and B
• A and O
• B and O