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Genetics

Genetics, Genotype, Phenotype, Alleles

QuestionAnswer
What is two alleles controlling a single trait are the same? homozygous
What is it called when the two alleles for a trait are different? heterozygous
An allele masks or suppresses the expression of its partner is called what? dominant
The allele that is masked or suppressed is called what? rescessive
The genetic makeup is called what? genotype
The way one's genotype is expressed is what? phenotype
XX female
XY male
What is the diploid chromosomal complement displayed in homologous pairs? karyotype
What is the genetic (DNA) makeup represents two sets of genetic instructions - one maternal and the other paternal? genome
The study of the mechanism of heredity is called what? genetics
Nuclei of all human cells (except gametes) contain how many chromosomes? 46
Sources of mutations: ultraviolet light, chemicals, genetics
What is the diagram used to predict the probability of having a certain type of offspring with a particular genotype and phenotype? punnett square
X chromosomes have how many genes? 2500
Y chromosomes have how many genes? 15
X-linked genes are: found only on the X chromosome, passed from mother to son, and never from males
Created by: stanman37
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