quiz 3/7

Question 1

Reccesive

Answer 1

trait only expressed when genotype is homozygous

Question 2

phenotype

Answer 2

set of observable traits (colors)

Question 3

mendel

Answer 3

father of modern genetics,worked with peas

Question 4

heterozygous

Answer 4

different letters or alleles

Question 5

homozygous

Answer 5

organisms with 2 of the same alleles

Question 6

allele

Answer 6

one of two or more alternative forms of a gene that arise by
mutation and are found at the same place on a chromosome.

Question 7

law of independent assortment

Answer 7

The segregation of alleles for one gene occurs independently to that of any other gene*

Question 8

codominance

Answer 8

more than one trait is always expressed even in heterozygote

Question 9

incomplete dominance

Answer 9

Heterozygotes possess an intermediate Phenotype

Question 10

Purebred

Answer 10

identical alleles (homozygous

Question 11

recessive

Answer 11

only expressed when genotype is homozygous

Question 12

dominant

Answer 12

an allele that is fully expressed in the phenotype of a heterozygote

Question 13

law of segregation

Answer 13

When gametes form, alleles are separated so that each gamete carries only one allele for each gene

Question 14

trait

Answer 14

charecteristic of an organism

Question 15

chromosome

Answer 15

structure found inside nucleus of a cell

Question 16

genes

Answer 16

basic unit of herditary

Question 17

genotype

Answer 17

genetic constitution of individual organism

Question 18

monohybrid

Answer 18

the offspring of two individuals that differ in respect of a single gene.

Question 19

dihybrid

Answer 19

a mating experiment between two organisms that are identically hybrid for two traits