Genetics

Question 0

Ploidy

Answer 0

Means count. As in chromosome count

Question 1

Diploid has how many chromosomes?

Answer 1

46

Question 2

Gamete

Answer 2

23 chromosomes

Haploid state

Question 3

What is “XX and XY” ?

Answer 3

Sex characteristics

Question 4

Do XXX or triple X female usually have problems?

Answer 4

No

Question 5

Do XYY has problems?

Answer 5

Nope just male.

Question 6

Karyotype

Answer 6

Systematic display of metaphase chromosomes.

Question 7

Aneuploidy

Answer 7

Without true count

Question 8

Genes

Answer 8

Units of hereditary information

Have physical location on DNA, which is called its locus.

Question 9

Locus

Answer 9

This is the location on DNA of a specific gene

Question 10

Alleles

Answer 10

Pairs of contrasting genes

Question 11

Dominant

Answer 11

The expressed gene

Question 12

Recessive

Answer 12

Only expressed in the absence of a dominant trait

Question 13

Genotype

Answer 13

What you are genetically

Question 14

Phenotype

Answer 14

What you look like

Question 15

Homozygous

Answer 15

Same

TT or tt

Question 16

Heterozygous

Answer 16

Different

Tt

Question 17

Punets Square

Answer 17

Used to determine the probably of a cross between different genes

Question 18

F1 generation

Answer 18

Monohybrid cross = different in only one trait

Question 19

The F1 generation is ___________ generation.

Answer 19

Filial

Question 20

Monohybrid cross

Answer 20

A cross between individuals differing in only one trait

Question 21

What are the expected phenotypic and genotypic ratios of a cross between two heterozygous tall and dwarf pea plants (Tt x Tt)?

Answer 21

3: 1 (phenotypic)
1: 2:1 (genotypic)

Question 22

Incomplete dominance (co dominance)

Answer 22

An inheritance pattern in which neither allele is dominant over the other, that is where the heterozygote is intermediate in phenotypic character

Question 23

Why are autosomal dominant genetic disorders so uncommon?

Answer 23

If you have the disease you are less likely to grow and reproduce so eventually the gene is dropped out over time

Question 24

Dihybrid cross

Answer 24

Deferring in two traits

Question 25

Dominant traits (examples)

Answer 25

Huntington’s disease

Question 26

Huntington’s Disease, why is it still around?

Answer 26

Not noticed until around 40’s and most have reproduced by then therefore it is still around. Woody Gutrie had this.