259700
Which is regarded as urinary bladder of embryo?
1 Amnion
2 Allantois
3 Chorion
4 Yolk sac
Explanation:
Allantois is regarded as urinary bladder of embryo. Allantois collect liquid waste from the embryo. It also helps in the exchange of respiratory gases. The chorionic fluid protects the embryo from exchange of nutrients, oxygen and waste products.
BVP-2009
Plant kingdom
259702
The fertilization in which male gametes are carried through pollen tube is known as
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. It is a condition in plants where pollen tubes are developed for the transfer of the male cells to the egg. The seed plants are siphonogamons while in lower plants the male cells usually swim to the eggs. As a consequence the spermatophytes are called as siphonogamons by some botanists.
Manipal-2008
Plant kingdom
259705
Dolichos lablab is a
1 straggler
2 climber
3 twiner
4 runner
Explanation:
Dolichos is a genus of legume family. These are herbs and shrubs growing upright sometimes with climbing stem or spreading prostrate upon the ground. They have woody rhizomes.
Punjab MET-2011
Plant kingdom
259706
Why is vivipary an undesirable character for annual crop plants?
1 It reduces the vigour of plant
2 The seeds cannot be stored under normal conditions for the next season
3 The seeds exhibit long dormancy
4 It adversely affects the fertility of the plant
Explanation:
Vivipary is an undesirable character for annual crop plants because the seeds cannot be stored under normal conditions for the next season. It adversely affects the fertility of the plants. It is defined as the precocious and continuous growth of the offspring when still attached to the maternal parent.
259700
Which is regarded as urinary bladder of embryo?
1 Amnion
2 Allantois
3 Chorion
4 Yolk sac
Explanation:
Allantois is regarded as urinary bladder of embryo. Allantois collect liquid waste from the embryo. It also helps in the exchange of respiratory gases. The chorionic fluid protects the embryo from exchange of nutrients, oxygen and waste products.
BVP-2009
Plant kingdom
259702
The fertilization in which male gametes are carried through pollen tube is known as
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. It is a condition in plants where pollen tubes are developed for the transfer of the male cells to the egg. The seed plants are siphonogamons while in lower plants the male cells usually swim to the eggs. As a consequence the spermatophytes are called as siphonogamons by some botanists.
Manipal-2008
Plant kingdom
259705
Dolichos lablab is a
1 straggler
2 climber
3 twiner
4 runner
Explanation:
Dolichos is a genus of legume family. These are herbs and shrubs growing upright sometimes with climbing stem or spreading prostrate upon the ground. They have woody rhizomes.
Punjab MET-2011
Plant kingdom
259706
Why is vivipary an undesirable character for annual crop plants?
1 It reduces the vigour of plant
2 The seeds cannot be stored under normal conditions for the next season
3 The seeds exhibit long dormancy
4 It adversely affects the fertility of the plant
Explanation:
Vivipary is an undesirable character for annual crop plants because the seeds cannot be stored under normal conditions for the next season. It adversely affects the fertility of the plants. It is defined as the precocious and continuous growth of the offspring when still attached to the maternal parent.
259700
Which is regarded as urinary bladder of embryo?
1 Amnion
2 Allantois
3 Chorion
4 Yolk sac
Explanation:
Allantois is regarded as urinary bladder of embryo. Allantois collect liquid waste from the embryo. It also helps in the exchange of respiratory gases. The chorionic fluid protects the embryo from exchange of nutrients, oxygen and waste products.
BVP-2009
Plant kingdom
259702
The fertilization in which male gametes are carried through pollen tube is known as
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. It is a condition in plants where pollen tubes are developed for the transfer of the male cells to the egg. The seed plants are siphonogamons while in lower plants the male cells usually swim to the eggs. As a consequence the spermatophytes are called as siphonogamons by some botanists.
Manipal-2008
Plant kingdom
259705
Dolichos lablab is a
1 straggler
2 climber
3 twiner
4 runner
Explanation:
Dolichos is a genus of legume family. These are herbs and shrubs growing upright sometimes with climbing stem or spreading prostrate upon the ground. They have woody rhizomes.
Punjab MET-2011
Plant kingdom
259706
Why is vivipary an undesirable character for annual crop plants?
1 It reduces the vigour of plant
2 The seeds cannot be stored under normal conditions for the next season
3 The seeds exhibit long dormancy
4 It adversely affects the fertility of the plant
Explanation:
Vivipary is an undesirable character for annual crop plants because the seeds cannot be stored under normal conditions for the next season. It adversely affects the fertility of the plants. It is defined as the precocious and continuous growth of the offspring when still attached to the maternal parent.
259700
Which is regarded as urinary bladder of embryo?
1 Amnion
2 Allantois
3 Chorion
4 Yolk sac
Explanation:
Allantois is regarded as urinary bladder of embryo. Allantois collect liquid waste from the embryo. It also helps in the exchange of respiratory gases. The chorionic fluid protects the embryo from exchange of nutrients, oxygen and waste products.
BVP-2009
Plant kingdom
259702
The fertilization in which male gametes are carried through pollen tube is known as
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. It is a condition in plants where pollen tubes are developed for the transfer of the male cells to the egg. The seed plants are siphonogamons while in lower plants the male cells usually swim to the eggs. As a consequence the spermatophytes are called as siphonogamons by some botanists.
Manipal-2008
Plant kingdom
259705
Dolichos lablab is a
1 straggler
2 climber
3 twiner
4 runner
Explanation:
Dolichos is a genus of legume family. These are herbs and shrubs growing upright sometimes with climbing stem or spreading prostrate upon the ground. They have woody rhizomes.
Punjab MET-2011
Plant kingdom
259706
Why is vivipary an undesirable character for annual crop plants?
1 It reduces the vigour of plant
2 The seeds cannot be stored under normal conditions for the next season
3 The seeds exhibit long dormancy
4 It adversely affects the fertility of the plant
Explanation:
Vivipary is an undesirable character for annual crop plants because the seeds cannot be stored under normal conditions for the next season. It adversely affects the fertility of the plants. It is defined as the precocious and continuous growth of the offspring when still attached to the maternal parent.
