A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs just after the formation of zygote. The adult filament of the alga has:-

1. Haploid vegetative cells and diploid gametangia

2. Diploid vegetative cells and diploid gametangia

3. Diploid vegetative cells and haploid gametangia

4. Haploid vegetative cells and haploid gametangia

A haploid parent produces gametes by: 

(1) mitosis 

(2) meiosis 

(3) endomitosis 

(4) amitosis 

A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs just after the formation of zygote. The adult filament of the alga has

(1) haploid vegetative cells and diploid gametangia

(2) diploid vegetative cells and diploid gametangia

(3) diploid vegetative cells and haploid gametangia

(4) haploid vegetative cells and haploid gametangia

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because:

1.Sexual reproduction is a lengthy process

2.Gametes of parents have qualitatively different genetic composition

3.Genetic material comes from parents of two different species

4.Greater amount of DNA is involved in sexual reproduction.

There are various types of reproduction. The type of reproduction adopted by an organism depends on:

1.The habitat and morphology of the organism

2.Morphology of the organism

3.Morphology and physiology of the organism

4.The organism’s habitat, physiology and genetic makeup

There are various types of reproduction. The type of reproduction adopted by an organism depends on:

1.The habitat and morphology of the organism

2.Morphology of the organism

3.Morphology and physiology of the organism

4.The organism’s habitat, physiology and genetic makeup

विभिन्न प्रकार के प्रजनन हैं। किसी जीव द्वारा अपनाए गए प्रजनन का प्रकार इस पर निर्भर करता है:

A.जीव का आवास और आकारिकी

B.जीव की आकारिकी

C.जीव की आकारिकी और शारीरिकी

D.जीव का आवास, शारीरिकी और आनुवंशिक संरचना

A few statements describing certain features of reproduction are given below:

i. Gametic fusion takes place.

ii. Transfer of genetic material takes place.

iii. The reduction division takes place.

iv. Progeny has a resemblance to parents.

Select the options that are true for both asexual and sexual reproduction.

(1) i and ii

(2) ii ans iii

(3) ii and iv

(4) i and iii

Select the correct sequence of events.
 

There are various types of reproduction. The type of reproduction adopted by an organism depends on:

1. The habitat and morphology of the organism

2. Morphology of the organism

3. Morphology and physiology of the organism

4. The organism’s habitat, physiology and genetic makeup

Choose the correct statement from amongst the following:

1. Dioecious (hermaphrodite) organisms are seen only in animals

2. Dioecious organisms are seen only in plants

3. Dioecious organisms are seen in both plants and animals

4. Dioecious organisms are seen only in vertebrates