Vocabulary Review GENETICS 1

Vocabulary Review GENETICS 1

Study of how characteristics are transmitted from parent to offspring GENETICS 2

The father of genetics

GREGOR MENDEL 3

Physical feature determined by the genotype

PHENOTYPE 4

Plant used by Mendel for his hereditary studies GARDEN PEAS 5

Transmission of characteristics from parent to offspring HEREDITY 6

A genetically determined characteristic

TRAIT 7

Stronger of two alleles that shows up most often

DOMINANT 8

Transferring pollen grains from anthers to the stigma of flowers POLLINATION 9

How garden peas are pollinated SELF POLLINATION 10

Female part of a flower

STIGMA 11

Having identical alleles (AA or aa) HOMOZYGOUS 12

Another term for a heterozygous genotype HYBRID 13

Law stating that a pair of alleles will separate whenever gametes are formed LAW OF SEGREGATION 14

F1 Dihybrid phenotypic ratio

9:3:3:1 15

A genotype having one dominant and one recessive allele HETEROZYGOUS 16

Law stating that alleles separate independently of each other when sperm and eggs are formed LAW OF INDEPENDENT ASSORTMENT 17

F1 Monohybrid Genotypic ratio

1:2:1 18

F1 Monohybrid Phenotypic ratio 3:1 19

How Mendel pollinated garden peas CROSS POLLINATION 20

Male part of a flower

ANTHER/STAMEN 21

The generation of truebreeding plants that Mendel used first P1 GENERATION 22

Two forms of a gene

ALLELES 23

Instructions on DNA that code for specific proteins or traits GENES 24

The weaker of two alleles in a pair that is often masked by the dominant allele RECESSIVE 25

Gene combination in the offspring

GENOTYPE 26

Dominance that occurs whenever both alleles for a trait are expressed CODOMINANCE 27

Type of genetics that studies the genes and chromosomes of an organism MOLECULAR GENETICS 28

Type of letter used to represent a dominant allele

CAPITAL 29

What Mendel called alleles in his experiments with pea plants FACTORS 30

The likelihood that an event will occur like tossing heads or tails on a coin PROBABILITY 31

Cross involving two traits

DIHYBRID 32

Dominance that occurs whenever the hybrid genotype produces a new, intermediate phenotype INCOMPLETE DOMINANCE 33

Used to solve genetics problems

PUNNETT SQUARE 34

Generation of all hybrids produced by crossing two pure organisms F1 GENERATION 35

Crossing a hybrid with a pure organism is this type of cross (1:1) TESTCROSS 36

Genetic cross involving a single trait

MONOHYBRID 37

Type of dominance in which the dominant allele is always expressed COMPLETE DOMINANCE 38

Generation that shows a 3:1 ratio of phenotypes

F2 GENERATION 39

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