WorksheetsCBSE-12-Biology-Chapter-1-Reproduction in Organisms
Total questions: 10
Worksheet time: 5mins
Which statement is most appropriate to define LIFE SPAN?
Period from birth till natural death of an organism
Period from birth till death of an organism
Period as long an organism lives
Life span cannot be defined
Oestrus cycle occurs in
Primates like monkey, apes and humans
Primates like cow sheep and rats
Non Primates like monkey, apes and humans
Non Primates like cow sheep and rats
Bulbil is a vegetative propagule in
Bryophyllum
Agave
Ginger
Water hyacinth
Asexual reproductive structure in sponge is called
Zoospore
Conidia
Buds
Gemmule
Which of the following statement about parthenogenesis is incorrect?
Development of new organism from sperm without fertilization
It is found in certain lizards and turkey
Syngamy do not occur
In rotifers and honeybees, female gametes develops directly into new organism without fertilization
Find the correct statement about Nucule and Globule
Nucule is also called Antheridium and Globule called Oogoniumin Chara sp.
Nucule lies below Globule in Chara sp.
Nucule is also called Oogonium and Globule called Antheridium in Chara sp.
In Chara sp., no such structures are found.
Find the correct statement
In animals, Lowest number of chromosomes 2n=2 is found in Aulocantha sp.
In animals, highest number of chromosomes 2n=1600 is found in Ascaris megalocephala.
Aulocantha sp belongs to Protozoa
Ascaris megalocephala belongs to annelida
Find the incorrect statement
Among plants, Ophioglossum reticulatum has the highest number of chromosomes in diploid cell
Ophioglossum reticulatum has (n=630) chromosomes
Ophioglossum is a grass
A diploid cell of Haplopappus gracilis is found to have only 4 chromosomes
Which of the following is correct?
Homothallic = Monoecious = bisexual
Homothallic = dioecious = bisexual
Homothallic = Monoecious = unisexual
Heterothallic = Monoecious = bisexual
Offset is a vegetative propagule found in
Water hyacinth
Potato
ginger
Agave
