CONCEPT OF MENDELIAN GENETICS

Question 1

is famous for discovering “particulate inheritance” or the idea that hereditary
elements are passed on in discrete units rather than “blended” together at each new generation. Today we call
those discrete units’ genes.

Answer 1

Gregor Mendel

Question 2

Scientific name of garden pea

Answer 2

Pisum sativum

Question 3

self
fertilization w/c produces “true-breeding
pea plants

Answer 3

Garden Pea

Question 4

mating two breeding
individuals that have the different traits

Answer 4

Hybridizations

Question 5

Plants use in first
generation were called…

Answer 5

P0 or “Parental
Generation one”

Question 6

first Filial (filial –
offspring, daughter, son)
generation

Answer 6

F1

Question 7

second filial’
generation

Answer 7

F2

Question 8

–An organisms underlying genetic
make- up symbolized with a pair of
letters

Answer 8

Genotype

Question 9

observable traits
express by an
organism

Answer 9

Phenotype

Question 10

most genes exist in many forms called…

Answer 10

Alleles

Question 11

A trait that requires at
least one dominant allele for the trait
to be expressed

Answer 11

Dominant

Question 12

A trait that requires two
recessive alleles for the trait to be
expressed

Answer 12

Recessive

Question 13

with two
dominant alleles (DD)

Answer 13

Homozygous dominant

Question 14

with two
recessive alleles

Answer 14

Homozygous recessive

Question 15

represented by the capital and lower case letters

Answer 15

Genotype

Question 16

trait that is actually expressed in an organism

Answer 16

Phenotype

Question 17

–by Reginald Punnett
–applies the rules of probability to
predict the possible outcomes of a
genetic cross or mating and their
expected frequencies

Answer 17

PUNNETT SQUARE

Question 18

Fertilization between two true-breeding parents
that differ in only one characteristics.

Answer 18

MONOHYBRID CROSS

Question 19

A cross describes a mating
experiment between two
organisms that are
identically hybrid for two
traits.

Answer 19

DIHYBRID

CROSS

Question 20

This inheritance of genes is termed

Answer 20

heredity

Question 21

the study of
reasons of heredity is

Answer 21

Genetics

Question 22

is a hereditary factor that determines (or influences) a particular trait. is comprised of
a specific DNA sequence and is located on a specific region of a specific chromosome. Because of
its specific location, a gene can also be called a genetic locus.

Answer 22

Gene

Question 23

produces its phenotype whether the organism is homozygous dominant or
heterozygous at that locus.

Answer 23

dominant allele

Question 24

produces its phenotype only when homozygous recessive at the locus; its
phenotype is masked if the locus is heterozygous.

Answer 24

recessive allele