Unit 5 Heredity Test

What is the purpose of a Punnett square?

• To analyze pedigrees

• To determine the phenotypic ratio

• To identify mutations

• To predict the genotypes of offspring

What is the genotype of the first individual in generation II?

• RR

• Rr

• rr

The Italian monk/scientist who first showed

the principles of genetics

• Watson and Crick

• Linnaeus

• Darwin

• Mendel

Tags

5.1 Mendelian genetics

vocabulary

______________________ are non-sex chromosomes. 

• Autosome
• Heterosome
• Homologous

Tags

5.1 Mendelian genetics

vocabulary

Which of the following describes a mutation in a gamete?

• It is always harmful

• It affects only the individual

• It occurs in somatic cells

• It can be passed to offspring

Which inheritance pattern is demonstrated by traits linked to the X chromosome?

• Sex-linked traits

• Autosomal traits

• Polygenic traits

• Codominance

Is this trait (the shaded individuals) dominant or recessive?

• dominant
• recessive

 When the genotype consists of a dominant and a recessive allele, the phenotype will be like the ______________ allele.

• dominant
• recessive
• both
• neither

Tags

5.1 Mendelian genetics

vocabulary

Using a pedigree, how can you determine if a trait is sex-linked?

• The trait is dominant

• The trait appears more often in males

• The trait is equally distributed among males and females

• The trait skips generations

What is the difference between point mutations and frameshift mutations?

• Point mutations affect phenotype, while frameshift mutations do not

• Point mutations involve a single nucleotide change, while frameshift mutations involve insertion or deletion of nucleotides

• Point mutations are always harmful, while frameshift mutations are not

• Point mutations occur in chromosomes, while frameshift mutations occur in genes