(i) Name two genetically engineered recombinant proteins used for treatement of specific disorders.
(ii) Name a substance produced by certain bacteria used in blood transfusion.
(iii) Who is credited with synthesis og gene.

Two claimant fathers filed a case against a lady claiming to be the father of her only daughter. How could this case be settled identifying the real biological father?

The police department could obtain a bunch of hair from the gripped hand of a murdered man. There were two persons arrested in this criminal case. How will the forensic department, give a clue to the criminals?

A man with blood group A and his wife blood group B have a son with blood group O, father claim that was not his son. How can the problem be solved?

Sometimes Gene flow or Gene migration is harmful for a population why?

Penicillin was once called wonder drug as it could heal most of the bacterial infections. It is no longer used now. Suggest the possible reasons for this.

Some international sports persons failed in dope tests& not allowed to participate in Olympics as they were drug abusers
i) Name the drugs that would have been taken by them.
ii) Why did they use such drugs?

Some human diseases are transmitted only when the blood of a patient comes in contact with the blood of a healthy person. In one of such disease, there is a progressive decrease in the number of lymphocytes of the patient.
i) Name the disease & its causative agent
ii) Name the type of lymphocytes affected due to this infection.

Health is the basic to life, and is essential for the good results in any sphere of life. A factory owner cannot expect the optimum output, if he does not employ healthy workers. A farmer cannot get optimum yield in his fields, if he is not healthy What does health actually mean? How is it related to our personal life & professional efficiency?

What role is played by heterozygosity in the improvement of breeds?

Write the economic importance of honey bee.

Pushpender is a scientist working on GMOs to produce Transgenic Buffaloes which can produce milk of medicinal properties. But he also found adverse effects on which they reduce their life span. Based on this, Answer the following.
a) What values are being neglected by him?
b) Should he continue with transgenic production of Buffaloes?
c) What Reactions and Reflections would he face from various organizations?

Gel Electrophoresis a Technique used to separate DNA fragments after the function of Endonuclease. Sushi couldn’t understand the actual function of Restriction Endonuclease. He takes the help of his friend sham by asking the questions. On the basis answer the following.
a) What is the difference between Exonuclease and Endonuclease?
b) Why sham did help his friend Sushi?
c) How can we see DNA fragments after the separation?

Genes encoding resistance to antibiotics like Ampicillin, chloramphenicol, tetracycline are useful selectable markers for E.coli. The normal E.coli cells do not carry resistance against any of these antibiotics. Ankita wants to know more clarity on these scriptures. She asks doubts to her teacher. Based on this please answer the following.
a) Name the best known plasmid vector?
b) What are selectable markers?
c) On what basis Biology teacher advices Ankita.

Jevan’s friend’s uncle suffers from reduced body weight loss. He suspects HIV. He wants to diagnose immediately. But due to shy he delays to meet doctor. One day Jevan came to know and advices him to go for ELISA or PCR Test. Based on these answer the following questions?
a) What are ELISA and PCR?
b) What makes Jevons uncle feel shy to meet doctor?
c) What are the steps involved in PCR?

Now a day’s animals are coming out of the forest and create problems in the nearby areas. Give the possible reasons.

Increasing population in India is the cause of failure behind many planning of Govt. Study of the population attributes helps the country in this situation. Give your Opinion.

A large area of farmland in our country is facing the problem of less soil fertility. According to you which aspect of ecosystem helps us and how?

Recently it was revealed that poaching of animals in their areas. How does it affect the ecosystem?

You find that a lake in your neighboring area has been covered by Water hyacinth. You have contacted your friends to remove this weed. Nobody agrees to support you. How will you explain the necessity of this?

A well- known personality killed a black buck during hunting in sacred groves of Aravali Hills in Rajasthan. Local people caught him and lodged a case in court against him. He argued that court that killing a human being is a crime but killing an animal is not crime. What is your opinion?

Students were taken for excursion to Arabari Joint forestry Project in Midnapore district, West Bengal .The various observations done by the students were as follows
(i) Village people using forest products without causing harm to forest.
(ii) Village people helping in plantation in deforestation areas.
(iii) A core area under the forest is not disturbed by anybody. State the various inference which the students draw from the observations

A sudden decline in fruits and seeds were seen in an area where regular heavy use of insecticides was done for the past few years. Give reasons for such an outcome.

A debate was conducted on school on the need to conserve biodiversity. One student felt. that there are so many species on the earth, why will it matter if we lose a few. Do you feel the same. Justify your answer.

Study-1. A forest that is rich in biodiversity seems to decline in animal population. The government declared it as a biodiversity hotspot and the forest regained its species richness in few years. Study-2. A lake that is rich in marine fishes seems to decline in its species population due to overexploitation. A wise man in the area decided to worship the lake. The species population f the lake again became normal.
(a) Which values are been promoted in the above studies.
(b) Suggest some ways by which you can contribute to this concern.
(c) What would be the effect if the forest was not declared hotspot?