Ch. 6 Mendelian and Quantitative Genetics Flashcards Preview

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Flashcards in Ch. 6 Mendelian and Quantitative Genetics Deck (21):
1

growth and reproduction of an individual

life cycle

2

joining of egg and sperm, creating gamete.

fertilization

3

genes in sperm and eggs provides information about traits of offspring

genetic variation

4

mutation lead to different alleles

gene mutation

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set of 2 equivalent chromosomes. not identical, each has own mutations

homologous pair

6

separation of allele pairs during gamete production. leads to independant assortment

segregation

7

each pair is segregated into daughter cells independantly of other pairs during gamete production (random alignment) genes that are on different chromosomes are inherited independantly of each other

independant assortment

8

gametes combine without regard to alleles they carry

random fertilization

9

nonidentical or fraternal twins. 2 eggs fuse with 2 sperm. are genetically no more similar than siblings vorn at different times

dizygotic twins

10

identical twins. develop from single egg and sperm, creating an embryo. cells in an embryo split

monozygotic twins

11

genetic composition of an individual. description of alleles for a particular gene

genotype

12

2 different alleles for same gene

heterozygous

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2 copies of same allele for a gene

homozygous

14

effects can only be seen when there is no dominant allele present. typically nonfunctional

recessive

15

effects seen even when recessive allele is present

dominant

16

physical traits of an individual

phenotype

17

genetic disease

can be caused by recessive and dominant alleles

18

recessive condition. mutant ion transporter protein.

cystic fibrosis

19

not affected by recessive allele, but can pass on to next generation

carriers

20

dominant allele. production of protein that forms lumps inside nuclei of cells

huntingtons

21

table to predict outcomes of a cross in genes

punnett square