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Biotechnology - 46
In the meiotic cell divison in daughter cells are produced by two successive division in which A. first division is equational, second is reductional B. first division is reductional and second is equational C. both divisions are reductional D. both divisions are equational What is the approximate size (in kb) of the melon mitochondrial genome? A. 600 kilobase B. 1200 kilobase C. 2400 kilobase D. 3000 kilobase When an organism has a life cycle with alternation of generations, the haploid generation is the A. zygote B. gametophyte C. gamete D. sporophyte....
Thời gian bắt đầu: Hôm nay lúc 22:27:31(Server time)
Số câu hỏi: 10.   Tổng điểm: 10
Thời gian làm bài: 20 phút.  Thời gian còn lại: 
Cỡ chữ câu hỏi:  Cỡ chữ đáp án:
1-
In the meiotic cell divison in daughter cells are produced by two successive division in which
A-
first division is equational, second is reductional
B-
first division is reductional and second is equational
C-
both divisions are reductional
D-
both divisions are equational
2-
What is the approximate size (in kb) of the melon mitochondrial genome?
A-
600 kilobase
B-
1200 kilobase
C-
2400 kilobase
D-
3000 kilobase
3-
When an organism has a life cycle with alternation of generations, the haploid generation is the
A-
zygote
B-
gametophyte
C-
gamete
D-
sporophyte
4-
When do kinetochore microtubules pull chromosomes towards opposite spindle poles?
A-
In anaphase A
B-
In anaphase B
C-
In metaphase
D-
In telophase
5-
During meiosis crossing over takes place at
A-
zygotene stage
B-
diplotene stage
C-
diakinesis stage
D-
pachytene stage
6-
Which of the following transposable elements are not found in plants?
A-
Ac
B-
Tam3
C-
L1
D-
All are found
7-
A plasmid used to introduce BT toxin into a plant cell
A-
carries an antibiotic resistance gene that makes the plant resistant to antibiotics
B-
causes the plant to produce opines
C-
is toxic for the plant cell
D-
carries a bacterial gene with a plant promoter
8-
The homologous chromosomes follow the process of synopsis in the
A-
leptotene
B-
zygotene
C-
pachytene
D-
diplotene
9-
When F1 plants are crossed with homozygous recessive plants, it is known as
A-
test cross
B-
recessive cross
C-
criss-cross
D-
para-cross
10-
The shortest of mitotic phases is the
A-
telophase
B-
interphase
C-
metaphase
D-
anaphase
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