Tag: introduction to reproduction
Questions Related to introduction to reproduction
Which of the following poultry bird lays maximum number of eggs annually?
-
ILS-82
-
B-77
-
HH-260
-
IBL-80
In poultry industry, production of hatching eggs is more expensive than the production of market eggs mainly because
-
Cost of males and their depreciation value is high.
-
Mortality among females is usually lower when they are mated with males.
-
Number of eggs produced by hatchery flock are to be sold only as market eggs.
-
Some of the eggs produced by hatchery flocks are not acceptable for incubation.
In the poultry industry, production of hatching egg is more expensive because it requires optimum temperature fo incubation. But the major factor is the weight of the hatching egg and chick weight. Under optimal egg storage and incubation conditions, chick weight is 67-69 per cent of egg weight at setting. Therefore, the more uniform the egg weight, the more uniform the chick weight. Breeder uniformity determines uniformity in the hatching eggs produced; the more uniform the breeder flock, the more uniform the egg weights. Hence, some of the eggs produced by hatchery flocks are not acceptable for incubation and is rejected. So, the production of hatching eggs is more expensive than the production of market eggs.
Which of the following is the most infective type of bird flu?
-
H5N1
-
H7N9
-
H1N1
-
None of the above
Put a tick mark against the correct alternative in the following statement:
Identify the indigenous breed of poultry of India
-
White leghorn
-
HH-260
-
Aseel
-
B-77
The indigenous breed of poultry of India is Aseel. It is noted for its pugnacity, high stamina, majestic gait and dogged fighting qualities.
Which of the following is the vegetative part of Jasmine plant?
-
Stem
-
Root
-
Flower
-
Leaf
Jasmine grows from their branches cut and planted by the branch touching the soil developing roots and growing into a separate plant independent of the mother plant.
Asexual reproduction is related to
-
Amphimixis
-
Agamospermy
-
Vegetative propagation
-
Both B and C
Flowering plants are called as
-
Angiosperms
-
Gymnosperms
-
Ferns
-
Mosses
Why seed dispersal is important?
-
Survival of plant
-
Introduction of plant
-
Adaptation of plant
-
None of these
- Dispersal of seed is important as if seeds germinate near to parent plants it will increase a lot of competition for air, water, and food as well.
- If competition increases it will lead to the death of the species and dispersal also leads to exposure to a new environment that helps in adaptation and evolution.
Seeds tarvel with water is filled with
-
Water
-
Air
-
Protein
-
None of the above
Seeds that travel in water is modified certain mechanism that make them light and filled with air so that they are able to travel a long distance and reach to places that are far from the parents. Its best example is the modification of mesocarp of coconut that helps it in hydrochory and able it to float a long distance.
Which of the following is correct for r-selected spices?
-
Large number of progeny with small size
-
Large number of progeny with large size
-
Small number of progeny with small size
-
Small number of progeny with large size
In r selected species the populations have a large number of offsprings while in k-selected species, the populations have a small number of offsprings. However, the offspring size in k-selected species is larger than that of r-selected species.