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Ch 11 Bio SG

Chapter 11 Biology StudyGuide

QuestionAnswer
Be able to list the genotypes of a Punnett Square. The genotypes is the actual gene. Example: BbYy
Be able to give the expecte genotypic ratio in a heterozygous cross. 1/2 Homozyguos, 1/2 Heterozygous; 1(TT) 2(Tt) 1(tt)
The farther apart two genes are located on a chromosome... the less likely there are to be inherited together.
Linked genes... are on the same chromosome.
Why is chromosome number reduced by meiosis? between meiosis 1 and meiosis 2, replication does NOT occur
Be able to recognize a figure of crossing over? when one chromosome leg crosses over one of another chromosome pair
How are gametes produced? Meiosis
What do most dihybrid crosses show? that which genes assort independently
Which of Mendel's principles explains why offspring inherit two recessive genes? principles of dominance and segregation
How do we represent the number of chromosomes in a gamete? the letter 'n'
Gametes have... one allele for each gene.
Organisms that have two identical alleles for a particular trait are said to be... homozygous
In Mendel's experiment, the probability that an F2 plant would be tall was... 75%
If alleles did not segregate during gamete formation... then all of Mendel's F2 plants would have been tall.
When Mendel allowed the tall F1 pea plants to self-pollinate... some of the offspring were short.
If a pea plant has a recessive allele for green peas it will produce: all green peas if it does not also have the dominant allele for yellow peas
The principle of dominance states that: some alleles are dominant and others are recessive.
In Mendel's experiments, the F1 plants inherited... an allele of tallness from the tall parent and an allele for shortness from the short parent.
What are Mendel's factors called today? genes
Created by: nick20ellis
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