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(1) In _______ mode of reproduction the offsprings are with minor differences.

(2) Both the parents contribute equal amount of _______ material to the offspring.

(3) Dominant character masks the _______ characters.

(4) Selection by nature is not _______ but _______.

Q18. Consider the following statements about Pakal Dul Dam and Hydro Project:

1. Regional Comprehensive Economic Partnership (RCEP) is a proposed free trade agreement (FTA) between the ten member states of the Association of Southeast Asian Nations (ASEAN) and the six states with which include India, China, Australia, Japan, South Korea and New Zealand.

2. RCEP would create the world’s largest trading bloc.

Which of the following statements are correct?

Which of the following is the reason for the absence of vision at the blind spot?

The human heart consists of _____ chambers.

Label the parts m, i, and s in the image below.

What is plasmolysis and deplasmolysis?

Identify the stage of mitosis by inspecting the image and key changes listed.

Key changes:

* Splitting of centromere.

* Chromosomes move towards poles.

* Cell constriction appears.

Match the substages of prophase I of first meiotic division listed in column I with the important events pertaining to respective stages given under column II; choose the answer which gives the correct combination of alphabets of the two columns:

$\begin{array}{cccc}& \text{Column I Substages of prophase I}& & \text{Column II Important events}\\ \text{A}& \text{Zygotene}& \text{p}& \text{Chromomeres}\\ \text{B}& \text{Pachytene}& \text{q}& \text{Bivalents migrate to periphery}\\ \text{C}& \text{Diplotene}& \text{r}& \text{Terminalization of chiasmata begins}\\ \text{D}& \text{Diakinesis}& \text{s}& \text{Crossing over}\\ & & \text{t}& \text{Synapsis}\end{array}$

Given ahead are three diagrammatic sketches (A, B and C) of one and the same particular phase during mitotic type of cell division.
(a) Identify the phase
(b) What is the diploid number of chromosomes shown in them ?
(c) Identify whether these are animal cells or plant cells ? Give reasons.
A...............,
B...............,
C...............,

Question 170

The population of a town is 450772. In a survey, it was reported that one out of every 14 people, is illiterate. In all, how many illiterate people are there in the town?

Which among the following is the function of guard cells?

Which of the following options gives correct example each of convergent evolution and divergent evolution?

The gap between ________ is called Nodes of Ranvier.

Human cells in culture show a cell cycle to be completed in approximately_________.

Label the diagram of digestive system;

__________is caused due to accidental discharge of petroleum products into the water bodies.

If the rate of respiration becomes more than the rate of photosynthesis, plants will :

(a) continue to live, but will not be able to store food.

(b) be killed instantly.

(c) grow more vigorously because more energy will be available.

(d) stop growing and die gradually of starvation.

Question 2

Which of the following is not a part of the female reproductive system in human beings?



(a) Ovary

(b) Uterus

(c) Vas deferens

(d) Fallopian tube

In which of the following plants, vegetative reproduction occurs by foliar adventitious buds?

Why do nerve cells do not divide?

The pumping organ in human body is __.

The average pumping rate of heart in a healthy adult under rest is_______times per minute.

What is the plant hormone responsible for fruit ripening and is important in abscission of leaves as well?

Which of the following is a symptom of cataract?

The passage suggests that during laboratory dives, the pH of the Weddell seal's blood is not adversely affected by the production of lactic acid because:

Which part of bryophyllum is involved in vegetative propagation?

Which of the following is false regarding active transport?

Identify 'A' in the above image.

The basic filtration unit of kidney is called ___________.

Ocean thermal energy is harnessed using the:

Fill in the blanks with appropriate prepositions.

The effect ____ the sedative will wear off only ____ twenty-four hours.

Question 6

Which of the following is not an example of response to a stimulus?

(a) Watering in mouth when we see delicious food items.

(b) Closing of leaves of Mimosa plant when touched.

(c) Shutting our eyes when an object is suddenly thrown in our direction.

(d) A chick hatching out of an egg.

Sketch the reproductive parts of a flower.

Preeti was washing the utensil in which she made tea, she threw the used tea leaves into the sink, what will Preeti observe after some time?