MENDELIAN GENETICS
Recessive genes will always be masked by dominant genes. This is Mendel's principle of ...............
Dominance
The characteristic that results from a monohybrid cross is the _____ trait.
Dominante
The seeds collected from the first generation monohybrids are called _____.
F1
What can be expected for the recessive trait of monohybrids from the F2 generation?
None of the above
recessive
a gene or trait that is masked when a dominant allele is present
Each trait of a plant is determined by _____.
a pair of genes
homozygous
a pair of genes that are identical in the way they influence a trait
heterozygous
a pair of non-identical genes that influence a trait in different ways
The genotype represents _____.
a paired combination of genes
purebred
a phenotype (trait) resulting from homozygous genes from the offspring of true breeding
allele
alternative form for a specific gene (either dominant or recessive)
dominant
can prevent the allele from being expressed in a pair of genes
Heredity allows for ______.
change between generations consistency between generations
A monohybrid cross is made between plants that _____.
differ in only one trait
To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a _____ to make the check.
homozygous recessive
hybrid
offspring from a cross between parents; has different phenotypes for a specific trait
The outward appearance of a particular trait is called the
phenotype
Mendel believed that during the formation of gametes, the pair of genes controlling a trait separate. He called this the principle of _____.
segregation
monohybrid cross
the breeding of two organisms that differ in a single trait
phenotype
the expression of a genetic trait; what the trait looks like
genotype
the genes present in an organism
Why did Mendel prevent his plants from self-pollinating?
to control the crossing of the traits
self-fertilization
when an organism that possesses both male and female gametes brings the two genetically identical gametes together to produce offspring