Science EOT Review #1

The yellow part of this picture is DNA. What do you think the turquoise part around it is?

• chromosome
• gene
• DNA
• ACTG

Tags

NGSS.HS-LS3-1

What are the small segments of chromosomes called?

• Genotypes
• DNA
• Genes
• Proteins

Tags

NGSS.HS-LS3-2

Which sentence is FALSE?

• Humans have 23 pairs of DNA.
• Humans have 46 total chromosomes.
• Genes are made of chromosomes.
• Every human's DNA is at least 99% similar.

Tags

NGSS.HS-LS3-1

Genes are passed from parents to offspring on 

• DNA
• duplicated genes
• chromosomes
• little boats

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which statement best describes a characteristic of a dominant gene?

• A dominant gene is passed only to offspring in pairs.
• A dominant gene is passed only to female offspring.
• A trait coded by a dominant gene is masked when a recessive gene is present.
• A trait coded by a dominant gene is expressed when the dominant genes is present.

Two parent guinea pigs that both express recessive traits are crossed.  Which trait will most likely be expressed in the offspring?

• rough coat texture
• short fur
• black coat color
• white spots

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two siblings express different eye colors.  The brother has brown eyes, but the sister has blue eyes.  Which statement explains why the two sibling express different eye colors?

• The siblings inherited a different number of chromosomes for eye color.
• The brother received traits only from his father and the sister received traits only from his mother.
• The siblings each received a different combination of genetic information from their parents.
• The brother received fewer genes from his mother than his sister did.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An organism's genetic makeup, or allele combinations. Set of genes

• genotype
• phenotype
• DNA
• chromosome

An organism's physical appearance, or visible traits. Physical expression of the gene.

• genotype
• phenotype
• DNA
• chromosome

(deoxyribonucleic acid) A complex molecule containing the genetic information that makes up the chromosomes.

• DNA
• gene
• allele
• chromosome