Genetics

Match the definition with the word The genetic makeup of an organism.

Match the definition with the word The observable or biochemical characteristic of an organism.

Match the definition to the word A length of DNA that is a sequence of nucleotide bases that code for a particular polypeptide.

Match the definition with the word One of the different forms of a gene.

What is homozygous dominant?

What is homozygous recessive?

What is a codominant allele?

Representing Genetic Crosses 1) Choose a single letter to represent each characteristic. This makes it [blank_start]easier as it is in short hand[blank_end]. 2) Choose the first letter of one of the contrasting features. This makes it [blank_start]easier to identify which characteristic[blank_end] is being used. 3) Choose a letter which the higher and lower case differs in size and shape. This [blank_start]makes it hard to confuse the letters[blank_end]. 4) Higher cases represent the [blank_start]dominant feature[blank_end], lower case letters represent the [blank_start]recessive feature[blank_end]. 5) Represent the parents with appropriate pairs of letters and state their [blank_start]phenotypes[blank_end]. 6) State the gametes produced and circle them. This [blank_start]reinforces that they are separate[blank_end]. 7) Use a [blank_start]Punnett square[blank_end] to show the results of random crossing and label male and female. This makes it [blank_start]less likely to make an error.[blank_end] 8) State the phenotypes of each different genotype and always put the higher case first. This [blank_start]reduces error when reading[blank_end].