Genetics

Question 1

fertilization

Answer 1

fusion of egg and sperm

Question 2

self fertilized

Answer 2

fusion of sperm and egg from the same plant

Question 3

cross fertilized

Answer 3

fusion of egg and sperm from two different plants, producing hybrids

Question 4

alleles

Answer 4

alternative versions of genes

Question 5

locus

Answer 5

area in which certain gene resides on a chromosome

Question 6

law of segregation

Answer 6

the two alleles for a heritable character separate during gamete formation and end up in different gametes

Question 7

genes

Answer 7

hereditary information that determines a single trait

Question 8

homozygous

Answer 8

occurs when tow identical alleles are inherited for a trait

Question 9

heterozygous

Answer 9

occurs when an organism inherits two different alleles for a trait

Question 10

law of independent assortment

Answer 10

alleles of one gene are passed to offspring and independently of the alleles of other genes

Question 11

chromosome theory of inheritance

Answer 11

mendelian genes have specific loci on gromosomes; is is the chromosomes that undergo segregation and independent arrortment

Question 12

complete dominance

Answer 12

heterozygote and dominant homozygous are identical

Question 13

codominance

Answer 13

two dominant alleles affect the phenotype in separate, distinguishable ways

Question 14

incomplete dominance

Answer 14

the phenotype is somewhere between the phenotypes of the two parental varieties