Genne

Question 1

Chromosone Theory of Heredity

Answer 1

k

Question 2

Sex chromosomes

Answer 2

a chromosome which determines the sex, of two kinds

Question 3

autosome

Answer 3

any chromosome that is not a sex chromosne

Question 4

X chromosone

Answer 4

a sex chromosone

Question 5

Y Chromosone

Answer 5

a sex chromosne

Question 6

Mutation

Answer 6

permanent change to a genetic sequence

Question 7

Chromosonal mutation

Answer 7

A chromosome mutation causes changes in the structure or number of chromosomes in a cell

Question 8

nondisjunction

Answer 8

abnormal distribution of chromosomes in the daughter nuclei due to failed splitting of homologous paird

Question 9

point mutation

Answer 9

a mutation affecting a very small amount of nucleotiudes in a gene sequence

Question 10

substitution

Answer 10

type of point mutation where a nucelotide is replaced with a different one resulting in an altered sequence during trranslation

Question 11

insertion

Answer 11

Insertion of one or more nuceletides in a gene sequence

Question 12

deletion

Answer 12

where part of a chromosome or gene sequence is deleted missing

Question 13

frameshift mutation

Answer 13

genetic mutation where by insertion of deletion a sequence is changed the way its read

Question 14

incomplete dominance

Answer 14

where one allele does not completely dominate the other and results in a new phenotype

Question 15

codominance

Answer 15

on a heterozyugote resulting in offspring that’s phenotype is neither dominant nor recessive

Question 16

polygenic inheritance

Answer 16

a single trait that is influenced by two or more allele (hair color)

Question 17

multiple allele inheritance

Answer 17

k

Question 18

translocation

Answer 18

chromosomal segment is moved from one position to another

Question 19

duplication

Answer 19

duplication of a region of DNA that contains a gene.

Question 20

Downsyndrome

Answer 20

An extra copy of chromosome 21

Question 21

Klinefelters Syndrome

Answer 21

Boy is born with an extra x chromosne

Question 22

Turners Syndrome

Answer 22

Where women only have one x chromosne

Question 23

Amniocentesis

Answer 23

screen for developmental abnormalities in a fetus.

Question 24

karyotype

Answer 24

The number and visual appearance of the chromosomes oiin the cell

Question 25

hemophilia

Answer 25

Where blood cannot clot well (inherited)

Question 26

sicklecell anemia

Answer 26

inherited abnormal hemoglobin

Question 27

Duchenne Muscular Dystrophy

Answer 27

mutattion if the DMD gene that is inherited. encodes the muscle protein, dystrophin

Question 28

cystic fibrosis

Answer 28

heredity dfisorder which production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi and often resulting in respiratory infection

Question 29

Tay-Sachs Disease

Answer 29

an inherited metabolic disorder in which certain lipids accumulate in the brain, causing spasticity and death in childhood.

Question 30

polydactyly

Answer 30

a condition in which a person or animal has more than five fingers or toes on one, or on each, hand or foot. Iherited

Question 31

mutagen

Answer 31

a chemical substance which causes genetic mutation

Question 32

inbreeding

Answer 32

bred from closely related people over decades

Question 33

hybridization

Answer 33

mating organisms of different varieties or species to create a hybrid

Question 34

Huntington's disease

Answer 34

a hereditary disease marked by degeneration of the brain cells and causing chorea and progressive dementia.

Question 35

monosomy

Answer 35

having only one chromosone

Question 36

trisomy

Answer 36

having an extra chromosone

Question 37

somatic mutation

Answer 37

Alterations in DNA that occur after conception

Question 38

germ mutation

Answer 38

k