Bio 141 Notes (4/15/14) Test 3 Flashcards Preview

Bio 141 > Bio 141 Notes (4/15/14) Test 3 > Flashcards

Flashcards in Bio 141 Notes (4/15/14) Test 3 Deck (16):
1

Allele

variant type of gene

2

genotype

instructions your genes have for you, letters
set of alleles it possesses

3

phenotype

expression of genes
how an organism appears

4

dominant

one allele that masks the expression of another allele

5

recessive

allele being masked

6

homomzygous

same allele - dominant or recessive

7

heterozygous

2 different alleles

8

genes are transmitted in regular ________ ways

predictable

9

Mendelian Laws

Segregation
Independent Assortment

10

Segregation

alleles for the same gene end up in different gametes

11

Independent Assortment

alleles for one gene do not affect whether alleles from another gene are inherited
- behave independently of different genes

12

Probability

odds/likelihood of something happening
- not an exact prediction

13

Segregation

change of an allele ending up in a gamete

14

Punnet Square

odds of any 2 gametes combining

15

Hybrids

genetic crosses between true-breeding lines

16

Hybrid Vigor

show advantages over either of their parents