Biology Semester 2 Part 1 review

Where can bacteria be found?

• At the bottom of the ocean
• In outer space
• Everwhere

• Only in laboratories

Are more bacteria helpful or harmful?

• Only helpful
• Mostly harmful
• Neither helpful nor harmful
• Mostly Helpful

Tags

NGSS.HS-LS2-6

What is fertilization?

• Fertilization is the fusion of a sperm cell with an egg cell.
• Fertilization is the breakdown of food in the digestive system.
• Fertilization is the process of photosynthesis in plants.
• Fertilization is the formation of a blood clot in the body.

Tags

NGSS.HS-LS3-1

What is the branch of biology that involves the study of how different traits are passed from one generation to another?

• Genetics
• Botany
• Zoology
• Biology

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The alleles for a recessive trait are usually represented by what type letter?

• uppercase letters
• lowercase letters
• symbols
• numbers

Heterozygous individuals have what type of genes?

• No alleles
• Two different alleles
• Three different alleles
• Two identical alleles

In heterozygous individuals which trait is expressed?

• Intermediate trait
• Co-dominant trait
• Dominant trait
• Recessive trait

In codominance two traits are expressed at the same time

• True

• False

What are the 3 parts of a nucleotide?

• Phosphate group, sugar molecule, protein
• Base pair, sugar molecule, nitrogenous base
• Phosphate group, lipid, nitrogenous base
• Phosphate group, sugar molecule, nitrogenous base

What is DNA replication?

• DNA replication is the process of converting RNA into DNA.
• DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
• DNA replication is the process of creating proteins from DNA molecules.
• DNA replication is the process of cell division.

Tags

NGSS.HS-LS3-2