genetics quiz

Question 1

chromosome

Answer 1

• in the nucleus

- containing genetic information

Question 2

homologous chromosome

Answer 2

• contain alleles for the same gene

- each chromosome is inherited from one of the parents.

Question 3

homo

Answer 3

same

Question 4

hetero

Answer 4

different

Question 5

heterozygous

Answer 5

a organism that has two different alleles of the same trait.

Question 6

homozygous dominant

Answer 6

an organism that has two dominant alleles for a trait.

Question 7

trait

Answer 7

a specific characteristic that varies between individuals.

Question 8

genotype

Answer 8

genetic make-up of an organism

Question 9

phenotype

Answer 9

physical characteristic of an organism

Question 10

allele

Answer 10

forms of a gene

Question 11

gene

Answer 11

a sequence of DNA that codes for a protein and thus determines a trait.

Question 12

mendelian traits

Answer 12

only 2 alleles per gene

Question 13

in a heterozygous individual, only the….

Answer 13

dominant allele is expressed in the phenotype

Question 14

incomplete dominance

Answer 14

heterzygous individual has a phenotype somewhere between the homozygous dominant and the heterozygous recessive

Question 15

structure within nucleus contain genetic info

Answer 15

chromosome