Module 7 Science Gr. 6

How are traits inherited from parents?

• The offspring receives all genetic makeup of the mother and nothing from the father.

• The offspring receives all genetic makeup from the father and nothing from the mother.

• The offspring receives half of their genetic makeup from the mother and half from the father.

• The offspring does not receive genes from their parents; they develop over time.

Which scientist discovered dominant and recessive genes?

• Gregor Mendel

• Reginald C. Punnett

• Bruce Ames

• August Weismann

How are alleles and phenotype related?

• Alleles are mutations that diminish your phenotype.

• Alleles are randomly assorted and fuel your phenotype.

• Alleles are cells that strengthen your phenotype.

• Alleles are inherited and determine your phenotype.

A person with brown eyes inherited the gene for brown eyes from one parent and the gene for blue eyes from the other parent. Which of these describes the gene for blue eyes?

• dominant

• recessive

• phenotype

• hybrid

A child who can roll their tongue (curl it) inherited an allele for tongue curling gene from both parents. What is the child’s genotype for tongue curling is ​ ?​ (a)  

• homozygous
• heterzygous

Which genotypes are heterozygous?

• BB

• pp

• Nn

• JJ

Which genotypes are homozygous?

• Bb

• Dd

• Cc

• CC

Black fur (B) is dominant over white fur (b) in rabbits. If there were two homozygous white (bb) rabbits, what is the probability that they will have a white offspring?

• 25%

• 50%

• 100%

• 75%

T is a dominant tall gene, and t is a recessive short gene. If a Tt genotype parent is crossed with a tt, what is the phenotype of the offspring?

• all short

• 1/2 short and 1/2 tall

• all tall

• 1/4 short and 1/4 tall

A _____ is a change in the amino acid chains that create proteins for cell function.

• mutation

• side effect

• disease

• offspring