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Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant - Homozygous re
5. A is a cross between two individuals in which one heritable trait is being studied. 6. In the space provided below, conduc
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Answer #1

1.
the gene-Basic fundamental unit of heredity.
Allele- Variant form a gene
Genotype- The genetic makeup of a cell.
Homozygous dominant- An organism carrying two copies of the same dominant allele.
Homozygous recessive- An organism carrying two copies of the same recessive allele.
Heterozygous- An organism carrying two different alleles of a gene.

2.
Mendel's law of segregation- the alleles of a gene gets segregated during the process
of gamete formation.

Yes. The law of segregation applies to genes located on chromosomes within a diploid nucleus.

3.
Purple is dominant over white
Tall is dominant over dwarf
spherical is dominant over wrinkled
Green is dominant over yellow

4.
D and d
A
b
p
T and t
R

5.
Monohybrid cross is a cross between two individuals in which one heritable trait is studied

6
Phenotypic ratio = 3:1
Genotypic ratio= 1:2:1р Тр PP Pp Pp pp

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