KEYSTONE - Mendel/Heredity/Terms

What is a phenotype?

• The expression of a trait; physical appearance.
• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

Tags

NGSS.HS-LS3-1

What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

R=round seed
r=wrinkled seed.
Cross a homozygous round with a wrinkled. Which statement predicts the results?

• offspring will be Rr
• offspring will be RR
• round seeds will be recessive to wrinkled
• Wrinkled will be observed in half of offspring

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What type of chromosomal abnormality do people with Down Syndrome have? 

• trisomy 21
• monosomy 21
• recessive inheritance
• dominant inheritance

the passing of genetic traits from parent to offspring.

• heredity
• trait
• gene
• allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Photograph of chromosomes grouped in ordered pairs

• pedigree
• Punnett Square
• Venn Diagram
• Karyotype

Tags

NGSS.HS-LS3-1

Chromosome that is not a sex chromosome

• Chromosome
• Autosome
• Sex Chromosome
• Homologous pair

Who is considered the "father" of modern genetics?

• Einstein
• Mendel
• Disney
• Trump

A single cross such as flower color.

• mono hybrid
• dihybrid
• crossing over
• homozygous