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Study Guide Answers

1.     It was not until the __________ Century that biologists acknowledged that both parents play a role in contributing to an offspring's characteristics.
     19th
2.     According to Mendel, discrete heritable factors are also called _______________________.
     genes
3.     The term "offspring" can also be called ____________________________.
     progeny
4.     Alternative forms of genes are known as __________________________.
     alleles
5.     For each inherited characteristic an organism has _____________________ allele(s).
     2
6.     A sperm or egg carries_______________ allele(s) for each characteristic.
     1
7.     In Mendel's pea plant experiment, the F1 generation had one green pod allele and one yellow pod allele. The progeny was green because the green pod allele was: a.) recessive b.) dominant c.) semi-recessive
     b. dominant
8.     A recessive allele is usually: a.) expressed b.) masked c.) semi-expressed
     b. Masked
9.     Any organism that has two identical sets of alleles is known as: a.) heterozygous b.) homozygous c.) an identical twin
     b. Homozygous
10.     The probability of a compound event is equal to the product of the separate probabilities of the independent single events. This statement is the: a.) Rule of Addition b.) Rule of Multiplication c.) Law of Segregation
     b. Rule of Multiplication
11.     Mating experiments that use a parental variety differing in one single trait are known as: a.) monohybrid crosses b.) dihybrid crosses c.) multiple hybrid crosses
     a. monohybrid crosses
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.