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BSC 170 Exam 1 Questions with Answers (100% Correct
Answers)
Basic type of experiment that mendel used Answer: Peas
- True breeding strains
-controlled matings
-grows to maturity in one season
- observable with 2 distinct forms
-recognized for transmission of hereditary traits
Dominance/Recessiveness Answer: In a pair of unit factors, one unit is
dominant, the other recessive
Segregation Answer: Paired unit factors segregate (separate)
independently during gamete formation
Genotype Answer: -Genetic Makeup of individual
- Alleles written in pairs (DD, Dd, or dd)
-Organism inherits two alleles
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-One from each parent
Phenotype Answer: Physical expression of a trait - how it looks
Monohybrid Answer: Reveals How One Trait Is Transmitted from
Generation to Generation
-crosses looking at one single trait across two generations
True-breeding
F1 Answer: offspring
F2 Answer: Offspring of F1 generation crossed (self-fertilizing:
"Selfing")
test cross Answer: One Character
-Determines if individual displaying dominant phenotype is
homozygous or heterozygous for that trait
-Cross between dominant phenotype and homozygous recessive
Homozygous Answer: Both alleles are the same (DD, dd)
Heterozygous Answer: - Alleles are different (Dd)
© 2025 All rights reserved
BSC 170 Exam 1 Questions with Answers (100% Correct
Answers)
Basic type of experiment that mendel used Answer: Peas
- True breeding strains
-controlled matings
-grows to maturity in one season
- observable with 2 distinct forms
-recognized for transmission of hereditary traits
Dominance/Recessiveness Answer: In a pair of unit factors, one unit is
dominant, the other recessive
Segregation Answer: Paired unit factors segregate (separate)
independently during gamete formation
Genotype Answer: -Genetic Makeup of individual
- Alleles written in pairs (DD, Dd, or dd)
-Organism inherits two alleles
© 2025 All rights reserved
, 2
-One from each parent
Phenotype Answer: Physical expression of a trait - how it looks
Monohybrid Answer: Reveals How One Trait Is Transmitted from
Generation to Generation
-crosses looking at one single trait across two generations
True-breeding
F1 Answer: offspring
F2 Answer: Offspring of F1 generation crossed (self-fertilizing:
"Selfing")
test cross Answer: One Character
-Determines if individual displaying dominant phenotype is
homozygous or heterozygous for that trait
-Cross between dominant phenotype and homozygous recessive
Homozygous Answer: Both alleles are the same (DD, dd)
Heterozygous Answer: - Alleles are different (Dd)
© 2025 All rights reserved