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7th Genetics Test #1

Genetics

QuestionAnswer
A gene that has one recessive and one dominant allele heterozygous
A gene that has two recessive alleles homozygous recessive
A gene that has two dominant alleles homozygous dominant
Genotype or phenotype: Gg? genotype
Genotype of phenotype: brown hair phenotype
Chromosome are made up of ____________. genes
Genes are made up of ________________. alleles
About how many years did Gregor Mendel experiment with pea plants? ten
3 plants have purple flower and 1 plant has white flowers. What percentage of plants have white flowers? 25%
If a plant has the allele combination Tt, will it be tall or short? Capital T is the dominant trait. Tall
an organism's physical appearance phenotype
a chart that shows four possible combinations of alleles that can result from a genetic cross Punnett square
the likelihood that a particular event will occur probability
an organism's genetic makeup or allele combination genotype
an organism that has two different alleles for a trait heterozygous
an organism that has two of the same alleles for a trait homozygous
Gregor Mendel did most of his genetic testing on pea plants
another word for physical characteristics traits
different forms of a gene alleles
A dominant allele is represented by a _____________ letter capital
A recessive allele is represented by a _______________ letter lower
passing traits from parents to offpsring genetics
organism resulting from sexual or asexual reproduction, such as a human child or new baby plant offspring
characteristics of an organism, such as freckles, curly hair, and height trait
changes in genetic information are called mutations
creates reproductive cells such as sperm and eggs meiosis
creates regular body cells mitosis
Which process creates copies of cells that have half the number of chromosomes? meiosis
Which process create exact copies of cells? mitosis
Are all mutations bad? no
Created by: edeboo
 

 



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