Biology Inheritance

Who do we obtain our genes from?

• plants

• our parents

• the sun

• the evolution

Tags

NGSS.HS-LS3-1

What does the term "homozygous alleles" mean?

• both alleles are different

• the gene is recessive

• the gene is dominant

• both alleles are the same

What is a genotype?

• The combination of alleles (written in letters)

• The physical feature

• The physical features of the parents

• The percentage of children having the trait expressed

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a gene is recessive, it means

• it will dominate

• it needs two equal alles to be expressed

• it won't pass

• GONDO ES LA MEJOR SKERE

What does the term "Heterozygous alleles" mean?

• Both alleles are the same

• the trait is recessive

• Both alleles are different

Having dimples is a recessive trait. If an homozygous recessive (dd) mates with an heterozygous dominant (DD), what will be te genotype of the 4 children?

• dd

• DD

• Dd

• I don't know

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a trait is dominant it can be expressed when:

• Just one allele is dominant

• both alleles are recessive

• One or both alleles are dominant

What are alleles?

• Chromosomes

• Different expressions of the same gene

• Different alleles of the same gene

• dioxyrebonucleic acid

Tags

NGSS.HS-LS3-2

If a recessive homosygous (aa) mated with a dominant homozygous (AA) and had 4 kids, what would be the ratio of the children?

• 50% and 50%

• 75% and 25%

• 40% and 60%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotype?

• The percentage of children having the trait expressed

• The combination of alleles

• The chance of having children with that feature

• The physical feature

Tags

NGSS.HS-LS3-3