Chapter 12 Learn Smart set 1

phenotype

the physical appearance or other observable characteristic of an individual is called his/her ____

multiplication rule

used for independent events

addition rule

used for mutually exclusive events

assortment

Mendel's observations supported the independent ____ hypothesis.

2 X 2

A Punnett square for a single trait should be set up as a ___ square.

two

An individual can acquire only ___ allele(s) per trait, even if multiple alleles are present in the population.

1. allowing plants to self-cross to ensure they are true- breeding. 2. reciprocal crosses between true-breeding varieties. 3. allowing hybrid offspring to self-fertilize

Place the three stages of Mendel's in the correct order.

1. Each individual receives one copy of each gene from each parent. 2. parents transmit factors to offspring 3. the presence of an allele doesn't ensure that it will be expressed. 4. alternative forms of genes are called alleles

Which of the following is a component of Mendel's five-element model?

Punnett square

Which of these can be used to predict the outcome of a simple genetic cross?

Polydactyly Mid-digital hair hypercholesterolemia

Which of these traits exhibit a dominant mode of inheritance?

the pattern of coat color in Siamese cats the pattern of coat color in Himalayan rabbits

examples of environmental influence on phenotype include..

incomplete dominance

if a cross between heterozygotes for a single trait results in three phenotypes, one of which is intermediate in appearance between the two homozygotes, which of the following types of inheritance is the likely reason?