discrete vs continuous variation

Complete the blank: In genetics, the word __________ is used to describe an organism's appearance.

Which three of the following show continuous variation?

• Height

• Blood group

• Foot length

• Tongue rolling

• Weight

What term is used to describe a genotype with two of the same alleles?

What term is given to a different form of a gene?

• Chromosome

• Chromatid

• DNA

• Allele

What would the genotype AA be termed as?

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive

What term is used to describe a genotype with two of the same alleles?

• Homozygous

• Heterozygous

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Which form of variation is a form of Polygenic Inheritance?

• Discrete Variation

• Continuous Variation

What are alleles?

• Long strands of DNA that contain lots of genes.

• Different versions of a gene.

• The basic unit of heredity; controls a specific trait.

• A characteristic passed from parent to offspring

• The differences that occur from a mixture of genes

What is the definition of a phenotype?

• An individuals alleles for a particular characteristic

• An individuals physical appearance

• The differences between members of the same species

• Variation that can be measured