genetic inheritance

Question 1

gamete

Answer 1

sex cells = sperm or egg

Question 2

chromosome

Answer 2

made of DNA, carries genes

23 pairs in a human cell

Question 3

gene

Answer 3

small section of DNA found on a chromosome that codes for a particular sequence of amino acids to for

Question 4

allele

Answer 4

variant of a gene

Question 5

dominant

Answer 5

if present, the characteristic is always expressed even if there is only one copy

Question 6

recessive

Answer 6

only the expressed characteristic if two are present/ if there is no dominant

Question 7

homozygous

Answer 7

when two identical copies of an allele are present for a certain gene

Question 8

heterozygous

Answer 8

when two different copies of an allele are present for a certain gene

Question 9

genotype

Answer 9

the collective group of alleles, determining an organisms characteristics

Question 10

phenotype

Answer 10

the physical expressions of an organisms characteristics

Question 11

how many pairs of chromosomes in a human cell

Answer 11

23

Question 12

female sex chromosomes?

Answer 12

xx - the same

Question 13

male sex chromosomes?

Answer 13

xy - different