A

Which statement is true of all proteins?

• Their structure is related to their function.

• Their main function is to cause mutations.

• They are created by mutations in DNA.

• They carry oxygen in human blood.

Tags

NGSS.MS-LS3-1

A _____ is a combination of alleles (example: AA, Tt, pp)

• phenotype

• gene

• trait

• genotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is used as a model for genetic information, which statement is correct?

• The manual is a chromosome.

• Each set of instructions is a protein.

• Each structure is a gene.

• The interlocking bricks are the chromosomes.

Tags

NGSS.MS-LS3-1

How are chromosomes and genes alike?

• They both contain genetic material.

• They are both part of DNA.

• They both encode a single protein.

• They are both found on chromatids.

Tags

NGSS.HS-LS3-1

Which statement is accurate about dominant alleles?

• They are expressed whenever present.

• They are indicated by lowercase letters.

• They are expressed only when a recessive allele is not present.

• They result in the trait of shortness in pea plants.

Tags

NGSS.HS-LS3-1

What is the main benefit of genetic biodiversity?

• Genetic biodiversity helps populations adapt to environmental changes.

• Genetic biodiversity helps populations avoid predators.

• Genetic biodiversity helps individuals produce more offspring.

• Genetic biodiversity helps individuals compete with each other.

Tags

NGSS.MS-LS4-4

Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?

• Genetic factors caused the differences in flower color.

• Environmental factors caused a genetic mutation that caused the differences in flower color.

• Environmental conditions caused the differences in flower color.

• Genetic factors caused environmental changes that caused the differences in flower color.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

A scientist sets up terrariums in a laboratory and observes the growth of lizards in each terrarium. Which of the following observations could be used as evidence that the amount of space in an environment can affect an animal's growth?

• Two lizards of the same species grow to different sizes in different-sized terrariums.

• Two lizards of the same species grow to different sizes in the same terrarium.

• Two different species of lizard grow to different sizes in the same terrarium.

• Two lizards of the same species grow to different sizes in terrariums with different food supplies.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Josaphina and Jasmine are sisters. Both of their parents have brown eyes. Josaphina also has brown eyes but Jasmines eyes are grey. Which of the following explains why the sisters have different eye color?

• Offspring from the same parents always inherit the same traits.

• Sometimes an offspring can show a variation of a trait that neither parent has.

• Parents who both have brown eyes always have at least one offspring with grey eyes.

• Eye color is not an inherited trait.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

What is the chemical symbol for the element with atomic number 1?

• H

• He

• Li

• Be