Punnett Square
Complete a Punnett square for TT and tt.
What is Tt, Tt, Tt, Tt
Jimmy has a big nose. His genotype is GG. Sally also has a big nose. Her genotype is Gg. What are the possibilities for their children's genotypes?
What is GG, GG, Gg, Gg
___________ is the passing down of traits from one generation to the next.
What is heredity?
Hh, Zz, Xx. Each of these are _______________.
What is heterozygous?
Capital letters are always represented by the _____________ allele
What is dominant?
Complete a Punnett Square using Gg and Gg
What is GG, Gg, Gg, gg
Jared is homozygous for brown hair. His wife is homozygous for blonde hair. Brown hair is dominant to blonde hair. What are the possible genotypes for their children?
What is Bb, Bb, Bb, Bb
A pair of alleles that are the same are called __________________.
What is homozygous?
HH, TT, zz. Each of these are ______________________.
What is homozygous?
A ______________ trait is a trait that is hidden by the dominant gene.
What is recessive?
Complete a Punnett Square between a homozygous black cat and a homozygous white cat. Assume incomplete dominance
What is BW, BW, BW, BW
Mike is heterozygous for brown eyes. His wife has blue eyes. What percentage of their children will most likely have brown eyes? What percentage will most likely have blue eyes?
What is 50% brown and 50% blue eyes?
A pair of alleles that are different are called ____________________.
What is heterozygous?
What are all the genotypes for blood type B?
What is BB and BO?
A chromosomal mutation where a portion of the chromosome is reversed
What is inversion?
Complete a Punnett Square between a hemophiliac female and a normal man.
What is XHXh, XHXh, XhY, XhY
Tim and Jenny both have dark skin, but each of them carry a recessive trait for light skin. What are the chances that their children will have dark skin? Light skin?
What is 75% dark skin and 25% light skin.
__________________ describes a pair of alleles and is represented by letters such as Tt or TT.
What is genotype?
What are 2 types of selective breeding?
What is inbreeding and hybridization?
The failure of homologous chromosomes to properly separate during meiosis
What is nondisjunction?
Complete a dihybrid cross between a homozygous tall green plant (dominant) and a homozygous short yellow plant (recessive)
What is all TtGg
James is homozygous for big lips. His wife also has big lips, but one of their children has small lips. What is his wife's genotype?
What is Bb
__________________ is simply the expression of the genotype. It is how the trait is expressed (ie. dark hair, tall, big lips, etc.)
What is phenotype?
What antigens and antibodies are produced in blood type B?
These proteins help cut DNA into smaller fragments
What are restriction enzymes?