1 Flashcards
(27 cards)
1
Q
define gene
A
heredity passed from parent to child
(study of heredity)
2
Q
define allele
A
- alternative form
- versions of gene
3
Q
define chromosomes
A
- threadlike gene
- found in nucleus
4
Q
chromosome structure autosome
A
- any chromosomes
- not sex chromosomes
5
Q
sex chromosomes
A
- (x and y)
- determine your sex as fem or male
6
Q
complete dominance
A
- one allele
- fully dominant over the other
7
Q
incomplete dominance
A
- one allele
- partially dominant over the other
8
Q
example of incomplete dominance
A
white x pink = pink (snap dragons)
9
Q
define co-dominance
A
- TWO alleles
- expressed into organism
10
Q
sex linkage
A
gene located on sex chromosomes
11
Q
test cross
A
- FIND
- the genotype of an organism
12
Q
dominance alleles/trait
A
- RELATIONSHIP OF 2 GENES
13
Q
recessive alleles/traits
A
- does not produce traits
- (WHEN BY ITSELF)
14
Q
punnet square
A
- predicting
- the genotypes and phenotypes of a genetic cross
15
Q
gene pool changed by:
A
- mutation
- natural selection
- genetic drift
16
Q
the founder effect:
A
- genetic drift
- occurs when small numbers colonize a new area
17
Q
bottleneck effect:
A
- genetic drift
- when POPULATION is reduced
18
Q
example of an organism that suffered bottle neck effect:
A
northern elephant seal
19
Q
natural selection:
A
- PROCESS OF
- living organisms change/adapt
20
Q
speciation def
A
- formation
- new species in evolution
21
Q
artificial selection def
A
- HUMANS SELECTION of
- breeding from different organisms
22
Q
evolution
A
- changes of organism
- OVERTIME
23
Q
charles darwin
A
- english natural scientist
- formulated theory of
- evolution by natural selection
23
Q
in breed
A
closely related breeding
24
out breed
not closely related breeding
25
DIVERGENT
- closely related
(OVERTIME)
- not related
26
CONVERGENT
- not related
(overtime)
- related
