Genetics Review

What does the Law of Segregation state?

• When sex cells form, the two alleles that determine a trait will end up on different gametes.
• Only one of the alleles will be expressed
• The genes will occur randomly on a chromosome
• Certain traits are not sex-linked

When a yellow flower is crossed with a blue flower, co-dominance can be seen by the production of which of the following?

• Blue flowers
• Yellow flowers
• Blue flowers with yellow tips
• Green flowers

Which set of parents can most likely produce a child with type O blood? 

• Both parents are homozygous for type B blood
• Both parents are homozygous with type A blood
• one parent with heterozygous type A blood, and the other parent with type B blood
• one parent with heterozygous type A blood, and the other parent with type O blood

What would be the genotype for individual 6?

• X^BX^b
• X^bX^b
• X^BY
• X^bY

What kind of trait is being traced in the following image?

• Autosomal dominant
• Autosomal recessive
• Sex-linked recessive
• Sex-linked dominant

The man who studied genetics and came up with genetics is

• Watson
• Crick
• Mendel
• Darwin

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• BB
• Bb
• bb
• Blue eyes

Tags

NGSS.HS-LS3-1

What is a phenotype

• The genetic make up (code)
• The physical trait

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