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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.