genetics

Question 1

gametes

Answer 1

reproductive cells

Question 2

chromosomes

Answer 2

large strings of hereditary units

Question 3

diploid

Answer 3

a cell that contains 2 copies of each chromosome. one set from mother and one set from father. 46 total

Question 4

haploid

Answer 4

a cell that contains a single set of chromosomes. 23 total

Question 5

meiosis

Answer 5

the process by which gametes are created

Question 6

dna

Answer 6

the molecule that contains genetic information

Question 7

genetic code

Answer 7

carries the genetic information in living cells

Question 8

nucleotide

Answer 8

form the basic structural unit of nucleic acids

Question 9

double helix

Answer 9

how dna is shaped

Question 10

gene

Answer 10

the unit of inheritance contained within the dna of an individual

Question 11

allele

Answer 11

when a gene comes in several varieties. each person has two alleles

Question 12

homozygous

Answer 12

if two alleles are alike

Question 13

heterozygous

Answer 13

if two alleles are different; the person is heterozygous for that particular gene

Question 14

dominant

Answer 14

a trait that will only be expressed if only one copy (paired with a recessive one) is present

Question 15

recessive

Answer 15

only expressed if the offspring has two copies of that trait

Question 16

genotype

Answer 16

a persons genetic makeup, including both dominant and recessive alleles

Question 17

phenotype

Answer 17

how genes express themselves in physical characteristics