law of inheritance

Question 1

describes what happens to the alleles during the formation of gametes. according to this law, an individual has a pair of alleles for each trait. during gamete formation, the alleles in the pair separate such that each gamete receives only one allele for the trait

Answer 1

law of segregation

Question 2

a parent gives just one allele for a gene to each gamete they produce

Answer 2

law of segregation

Question 3

states that some alleles are dominant, whereas others are recessive.

Answer 3

the law of dominance

Question 4

often shows a heterozygous phenotype that is intermediate between the two homozygous phenotypes

Answer 4

incomplete dominance

Question 5

both alleles contribute to the phenotype of an organism

Answer 5

codominance

Question 6

one of the very important tools in studying human genetics and patterns of inheritance. it uses symbols that shows one’s family history. also shows the family relations and the phenotypes of each member

Answer 6

pedigree analysis

Question 7

special pattern of inheritance. applies to genes that are located on the sex chromosomes

Answer 7

sex linkage

Question 8

determine if an individual is male or female

Answer 8

sex chromosome

Question 9

affect a single gene or many genes in the entire chromosome

Answer 9

mutations

Question 10

only one gene is affected

Answer 10

gene mutation

Question 11

factors that cause mutations

Answer 11

mutagens

Question 12

examples of mutagens

Answer 12

radiation, x-rays, ultraviolet rays, certain food additives, drugs, toxic chemical

Question 13

involves the loss of a piece of chromosome or a break of the dna molecule

Answer 13

deletion

Question 14

also known as chromosome 5p, problems with their voice box and nervous system

Answer 14

cri-du-chat syndrome

Question 15

occurs when a part of the dna segment within the chromosome change in direction

Answer 15

inversion

Question 16

it is a bleeding disorder

Answer 16

hemophilia a

Question 17

ways in which chromosomes can be changed

Answer 17

deletion, inversion

Question 18

modern genetics

Answer 18

pedigree analysis, sex linkage

Question 19

types of dominance

Answer 19

incomplete dominance, codominance

Question 20

types of incomplete dominance

Answer 20

mendelian, non-mendelian

Question 21

involves the entire chromosome affecting many genes. translocation and gene duplication occur

Answer 21

chromosomal mutation

Question 22

happens when a piece of one chromosome moves to a non homologous reciprocal chromosome. can cause severe problems such as: cancer, lymphomas, myelomas, leukemia

Answer 22

translocation

Question 23

examples of severe problems translocation can cause

Answer 23

cancer, lymphomas, myelomas, leukemia

Question 24

occurs when gene sequences have been repeated too many times

Answer 24

duplication

Question 25

example of duplication

Answer 25

charcot-marie-tooth disease