In birds, the females have one Z and one W chromosome, whereas males have a pair of Z-chromosomes besides the autosomes.so female are heterogamous.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342623
The unfertilised eggs in honey bees develop into
1 Worker
2 Queen
3 Males
4 1 and 3
Explanation:
An unfertilised egg develops as a male (drone) by means of parthenogenesis.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342633
Match the columns I and II w.r.t. Sex determination.
Column I
Column II
A. Haplo-diploid system
P. Female heterogamety
B. ZW - ZZ method
Q. Male heterogamety
C. XX - XY method
R. Apis
D. XX - XO method
S. Locust
1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
Explanation:
A-R, B-P, C-Q, D-S.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342621
Identify the incorrect statement for sexdetermination in humans.
1 Humans contain 22 pairs of autosomes
2 Females produce only one type of ovum
3 Genetic makeup of sperm determine the sex of the child
4 In males, one type of gamete are produced
Explanation:
Among the human males an X-chromosome is present but its counter part is distinctly smaller and called the Y-chromosome.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342620
The concept of sex-linked inheritance was introduced by?
1 T H Morgan
2 Hugo de Vries
3 G Pontecarno
4 Both (2) and (1)
Explanation:
The concept of sex-linked inheritance was introduced by T.H. Morgan in Drosophila melanogaster. While experimenting, on dihydrid cross between eye colour & body colour in one cross and eye colour and wing size in other.
In birds, the females have one Z and one W chromosome, whereas males have a pair of Z-chromosomes besides the autosomes.so female are heterogamous.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342623
The unfertilised eggs in honey bees develop into
1 Worker
2 Queen
3 Males
4 1 and 3
Explanation:
An unfertilised egg develops as a male (drone) by means of parthenogenesis.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342633
Match the columns I and II w.r.t. Sex determination.
Column I
Column II
A. Haplo-diploid system
P. Female heterogamety
B. ZW - ZZ method
Q. Male heterogamety
C. XX - XY method
R. Apis
D. XX - XO method
S. Locust
1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
Explanation:
A-R, B-P, C-Q, D-S.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342621
Identify the incorrect statement for sexdetermination in humans.
1 Humans contain 22 pairs of autosomes
2 Females produce only one type of ovum
3 Genetic makeup of sperm determine the sex of the child
4 In males, one type of gamete are produced
Explanation:
Among the human males an X-chromosome is present but its counter part is distinctly smaller and called the Y-chromosome.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342620
The concept of sex-linked inheritance was introduced by?
1 T H Morgan
2 Hugo de Vries
3 G Pontecarno
4 Both (2) and (1)
Explanation:
The concept of sex-linked inheritance was introduced by T.H. Morgan in Drosophila melanogaster. While experimenting, on dihydrid cross between eye colour & body colour in one cross and eye colour and wing size in other.
In birds, the females have one Z and one W chromosome, whereas males have a pair of Z-chromosomes besides the autosomes.so female are heterogamous.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342623
The unfertilised eggs in honey bees develop into
1 Worker
2 Queen
3 Males
4 1 and 3
Explanation:
An unfertilised egg develops as a male (drone) by means of parthenogenesis.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342633
Match the columns I and II w.r.t. Sex determination.
Column I
Column II
A. Haplo-diploid system
P. Female heterogamety
B. ZW - ZZ method
Q. Male heterogamety
C. XX - XY method
R. Apis
D. XX - XO method
S. Locust
1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
Explanation:
A-R, B-P, C-Q, D-S.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342621
Identify the incorrect statement for sexdetermination in humans.
1 Humans contain 22 pairs of autosomes
2 Females produce only one type of ovum
3 Genetic makeup of sperm determine the sex of the child
4 In males, one type of gamete are produced
Explanation:
Among the human males an X-chromosome is present but its counter part is distinctly smaller and called the Y-chromosome.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342620
The concept of sex-linked inheritance was introduced by?
1 T H Morgan
2 Hugo de Vries
3 G Pontecarno
4 Both (2) and (1)
Explanation:
The concept of sex-linked inheritance was introduced by T.H. Morgan in Drosophila melanogaster. While experimenting, on dihydrid cross between eye colour & body colour in one cross and eye colour and wing size in other.
In birds, the females have one Z and one W chromosome, whereas males have a pair of Z-chromosomes besides the autosomes.so female are heterogamous.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342623
The unfertilised eggs in honey bees develop into
1 Worker
2 Queen
3 Males
4 1 and 3
Explanation:
An unfertilised egg develops as a male (drone) by means of parthenogenesis.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342633
Match the columns I and II w.r.t. Sex determination.
Column I
Column II
A. Haplo-diploid system
P. Female heterogamety
B. ZW - ZZ method
Q. Male heterogamety
C. XX - XY method
R. Apis
D. XX - XO method
S. Locust
1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
Explanation:
A-R, B-P, C-Q, D-S.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342621
Identify the incorrect statement for sexdetermination in humans.
1 Humans contain 22 pairs of autosomes
2 Females produce only one type of ovum
3 Genetic makeup of sperm determine the sex of the child
4 In males, one type of gamete are produced
Explanation:
Among the human males an X-chromosome is present but its counter part is distinctly smaller and called the Y-chromosome.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342620
The concept of sex-linked inheritance was introduced by?
1 T H Morgan
2 Hugo de Vries
3 G Pontecarno
4 Both (2) and (1)
Explanation:
The concept of sex-linked inheritance was introduced by T.H. Morgan in Drosophila melanogaster. While experimenting, on dihydrid cross between eye colour & body colour in one cross and eye colour and wing size in other.
In birds, the females have one Z and one W chromosome, whereas males have a pair of Z-chromosomes besides the autosomes.so female are heterogamous.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342623
The unfertilised eggs in honey bees develop into
1 Worker
2 Queen
3 Males
4 1 and 3
Explanation:
An unfertilised egg develops as a male (drone) by means of parthenogenesis.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342633
Match the columns I and II w.r.t. Sex determination.
Column I
Column II
A. Haplo-diploid system
P. Female heterogamety
B. ZW - ZZ method
Q. Male heterogamety
C. XX - XY method
R. Apis
D. XX - XO method
S. Locust
1 A – R , B – P , C – Q, D – S
2 A – Q , B – R , C – P, D – S
3 A – P , B – R , C – Q, D – S
4 A – Q , B – P , C – R , D – S
Explanation:
A-R, B-P, C-Q, D-S.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342621
Identify the incorrect statement for sexdetermination in humans.
1 Humans contain 22 pairs of autosomes
2 Females produce only one type of ovum
3 Genetic makeup of sperm determine the sex of the child
4 In males, one type of gamete are produced
Explanation:
Among the human males an X-chromosome is present but its counter part is distinctly smaller and called the Y-chromosome.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342620
The concept of sex-linked inheritance was introduced by?
1 T H Morgan
2 Hugo de Vries
3 G Pontecarno
4 Both (2) and (1)
Explanation:
The concept of sex-linked inheritance was introduced by T.H. Morgan in Drosophila melanogaster. While experimenting, on dihydrid cross between eye colour & body colour in one cross and eye colour and wing size in other.
