AP Biology (Mader), 11th Edition

Chapter 11: Mendelian Patterns of Inheritance

Pre-Test

1
When an organism has two different alleles at a gene locus, it is referred to as _____.
A)homozygous recessive
B)homozygous dominant
C)heterozygous
2
Which of the following was discovered by Mendel?
A)Linkage
B)The relationship of genetic behavior to laws of probability
C)The location of genes on chromosomes
D)The role of chromosomes in sex determination
3
An organism's actual gene makeup, often designated by letters like Aa or BB, is the ________.
A)genotype
B)phenotype
C)karyotype
D)lenotype
4
Which of the following is a phenotype?
A)Tt
B)Heterozygous
C)Short
D)T
5
Each gamete has only one allele for each trait because gametes are always _____.
A)haploid
B)diploid
C)triploid
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