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21 Terms
What are the genotypes of a heterozygous tall plant?
Tt
What blood type has the genotype ii?
Type O
Which parent determines the sex of the baby?
The father
Why are sex-linked disorders more common in males?
Males only have one X chromosome.
What syndrome is caused by trisomy 21?
Down syndromeWhat is an example of codominance?
What is an example of codominance?
AB blood type
What are autosomes?
Non-sex chromosomes
What does the Law of Segregation state?
Alleles separate during meiosis.
What causes genetic variation during meiosis?
Crossing over and independent assortment
What is genetics?
The study of heredity and inherited traits.
Who is known as the father of genetics?
Gregor Mendel
What is a gene?
A segment of DNA that controls a trait.
What is an allele?
Different forms of the same gene.
What is a monohybrid cross?
A cross involving one trait.
What is a dihybrid cross?
A cross involving two traits.
What is incomplete dominance?
When traits blend together.
What is codominance?
When both alleles are fully expressed.
What is a polygenic trait?
A trait controlled by many genes.What is a pedigree?
What is a pedigree?
A family tree showing inheritance patterns.
What is a mutation?
A change in DNA sequence
What is nondisjunction?
Failure of chromosomes to separate during meiosis.