Biology SOL Review 2021

Suppose two organisms, each heterozygous for eye color, reproduced and had offspring. How likely are the two organisms to have heterozygous offspring?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-3

Red flower color is dominant to white flower color in rose plants. What is the expected result of a cross between two heterozygous rose plants?

• 100% Red

• 75% red, 25% white

• 50% red, 50% white

• 25% red, 75% white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

The weakness of hydrogen bonds between the bases of DNA allows-

• rearrangement of the sequence of bases to take place
• base pairs to separate during transcription and replication
• new bases to be incorporated into the DNA molecule
• conversion of bases to amino acids in the event of cell starvation

Which direction does water move in a hypotonic solution?

• water moves out of the cell
• solutions moves into the cell
• water moves into the cell
• solution moves out of the cell

Active transport requires the cell to move materials against the concentration gradient, what molecule is required for this to occur?

• ADP
• ATP
• carbohydrates
• lipids

The original cell which gave rise to all other cells in evolution had which three parts?

• ribosomes, mitochondria, DNA
• nucleus, cell membrane, DNA 
• chloroplasts, mitochondria, DNA
• ribosomes, membrane, DNA

Which symbiotic relationship is described by one individual benefiting and the other being neither harmed nor benefited?

• Mutualism
• Commensalism
• Parasitism
• Competition

If a homozygous dominant (AA) individual is crossed to a homozygous recessive (aa) individual, what will the genotypes be of the offspring?

• 50% AA, 50% aa
• 25% AA, 50% Aa, 25% aa
• 100% Aa
• 50% AA, 50% Aa

Tags

NGSS.HS-LS3-1

Which statement about viral reproduction is correct?

• A virus must complete interphase before entering mitosis
• A virus cannot repdouce on its own and depends on the host cell
• A virus can only use a host to reproduce if the host cell lacks a cell membrane

Which of the following would be the RNA strand transcribed from the following DNA strand: ATTGGCTAG?

• UAAGGTTCA
• TTAGCCTTT
• UAACCGAUC
• TTAUUCCTU