Chapter Ten Flashcards
(31 cards)
1
Q
Genetics
A
Study of heredity
2
Q
Heredity
A
Passing of traits from parent to offspring
3
Q
Trait
A
Inherited characteristic
4
Q
Allele
A
2 make up a gene
T, t
5
Q
DNA
A
Stores genetic code
6
Q
Heterozygous
A
To
7
Q
Homozygous
A
TT
8
Q
Genotype
A
Alleles
9
Q
Phenotype
A
Looks
10
Q
Dominant
A
R
11
Q
Recessive
A
r
12
Q
Meiosis
A
Cell development/reduction
13
Q
Gamete
A
Sex cell
14
Q
Haploid
A
Split sex cell
23 chromosomes
(n)
15
Q
Diploid
A
Not split
46 chromosomes
(2n)
16
Q
Zygote
A
Fertilized Cell
17
Q
Fertilization
A
Male gamete unites with female gamete
18
Q
Crossing over
A
2 genes switch
19
Q
Genetic recombination
A
Multiple genes switch
20
Q
Nondisjunction
A
Chromosomes not evenly split
23+24
21
Q
Punnett square
A
Genetic cross tool
22
Q
Hybrid
A
TTxtt=Tt
23
Q
Purebred
A
TT x TT= TT
24
Q
Who is Gregor Mendel
A
Father of genetics, first to study genetics
25
4 facts about Gregor Mendel
Monk
From Austria
Gardener
1860s
26
2 laws of Gregor Mendel
Law of segregation
| Law of independent assortment
27
Famous experiment
```
Tall + short
⬇️
Tall + Tall
⬇️
Tall tall tall short
```
28
Law of segregation
Only one allele per trait can be passed per offspring
T or t
29
Law of independent assortment
One trait doesn’t influence how another trait is passed on
30
Results of meiosis
4 unique sex cells
31
Importance of meiosis
Sexual reproduction and maintain same number of chromosomes
