Mendal experiment ch 9

Question 1

why is menal experiment successful ?

Answer 1

1-chose pea plant as model organism
2-focused on easily categorized traits
3-developed distinict population
1-اختير نبات البازلاء ككائن حي نموذجي
2- ركز على السمات التي يمكن تصنيفها بسهولة
3-سكان متطورون متميزون
4-easy to maintain
5-they are easy to breed
6-they reproduce quickly

pee

pea=بازلاء

Question 2

mendal experiment started population by ______________
and ______________

Answer 2

1-true-breeding plant

plants that are “true-breeding :
self-fertilized and will produce offspring identical to themselves ,will match the parents

2-hybridizations
the concept of mixing or mating 2 true-breeding individual that have different traits

hi brid iz ation=التهجين

hy brid ization

Question 3

true-breeding plant example

Answer 3

F0

Question 4

generation 1 crossed :

Answer 4

F0+F1
will be purple
will be tall

Question 5

F2 generation

Answer 5

F1+F2
1-mix with 2 result
2-ratio is
3:1
3-reappear to the second thing

Question 6

Which of the following characters of pea plants was not studied by Mendel?

flower color
seed shape
height of plant

seed بذره

seed shape

Answer 6

Length of root

Question 7

dominant trait

da min nnt=controll or having great influence over all others

do min ant

Answer 7

mask the effect of recessive traits
example : purple is dominant to white

Question 8

Each individualhas _______ copies of each gene

Answer 8

2

Question 9

Each sprem or egg gets just ________ copy of the gene during __________

Answer 9

one , meiosis

Question 10

Each trait is coded for by a single gene and there are _________

Answer 10

2 alleles

Question 11

Allele for flowers

Answer 11

white and red

Question 12

each fertilized of egg gets

Answer 12

two copy of gene

Question 13

law of segregation comes after ________

Answer 13

generation 2

Question 14

Three Important Ideas from Mendel’s Research:

Answer 14

1-Each parent puts a single set of genes into each sperm or egg it makes
2-Offspring receive two copies of the instructions for any trait
3-The observed trait in an individual depends on the two copies of the gene it inherits from its parents

يضع كل والد مجموعة واحدة من الجينات في كل حيوان منوي أو بويضة يصنعها
يتلقى النسل نسختين من التعليمات الخاصة بأي سمة
تعتمد السمة المرصودة لدى الفرد على نسختين من الجين الذي يرثه من والديه