Question 2 :
A scion is grafted to stock. The quality of fruits produce will be determined by genotype of—

Question 5 :
<img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ISC%20-%20Class%2012/5f7d5946fb4627429f3a8962"><br>State the type of gametes shown in the diagram.<br>

Question 9 :
Which part would be most suitable for raising virus free plants for micropropagation ?

Question 10 :
Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because:

Question 11 :
The number of chromosomes in the shoot tip cells of maize plant is 20. The number of chromosomes in the microscopic mother cells of the same plant shall be—

Question 12 :
Which of the following is a post-fertilization event in flowering plants?

Question 16 :
Which of the following statement support the view that elaborate sexual reproductive process appeared much later in the organic evolution ?<br>(i) Lower group of organisms have simpler body design<br>(ii) Asexual reproduction is common in lower groups of organisms<br>(iii) Asexual reproduction is common in higher groups of organisms<br>(iv) The high incidence of sexual reproduction in angiosperms and vertebrates<br>Choose the correct answer from the options given below -

Question 17 :
In which of the following organism, self fertilization is seen ?

Question 18 :
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses ?

Question 20 :
There are various types of reproduction. Die type of reproduction adopted by an organism depends upon—

Question 21 :
Which one of the following processes result in the formation of clone of bacteria ?

Question 26 :
When seeds are attached to parent plant, the type of germination in known as—

Question 29 :
There is no natural death in single celled organisms like Amoeba and Bacteria because—

Question 30 :
Which of the following animal Ls having longitudinal binary' fission ?

Question 34 :
In angiosperms........lead to the formation of a mature male gametophyte from a pollen mother cell.

Question 44 :
Name the parts {tex} { } ^ { \prime } \mathrm { A } ^ { \prime } {/tex} and {tex} { } ^ { \prime } \mathrm { B } ^ { \prime } {/tex} shown in the diagram below.<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ISC%20-%20Class%2012/5f7d58f6fb4627429f3a8948"><br>

Question 48 :
.......is the phenomenon wherein, the ovary7 develops into a fruit without fertilization.

Question 51 :
Which cell of the pollen grain divide to form the male gametes?

Question 52 :
Study the following figure representing the structure of a mature pollen grain and answer the questions that follow:<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ISC%20-%20Class%2012/5f7d58f4fb4627429f3a8940"><br>Identify the part labelled A-E.

Question 56 :
The transfer of pollen to the stigma of another flower of the same plant is called—

Question 60 :
Endosperm cell of an angiosperm has 36 chromosomes. The number of chromosomes in the gametes would be—

Question 62 :
Ornithophily refers to the pollination by which of the following ?

Question 65 :
Given alongside is an enlarged view of one microsporangium of mature anther.<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ISC%20-%20Class%2012/5f7d58f5fb4627429f3a8944"><br>Name 'a' 'b' and 'c' wall layer.

Question 67 :
Mention the characteristic and function of the cells forming wall layer 'c'.

Question 71 :
Starting from the innermost part, the correct sequence of parts in an ovule are—