Explore topic-wise InterviewSolutions in Current Affairs.

Answer (a) hormones

Answer (b) ovulation

Answer (d) Syphilis

Answer (b) Purity of gamete

Answer (d) Statement I is false, but Statement II true.

B. only 2 and 3 

B. P: nucleosome; Q: DNA 

D. only 1, 2 and 4

Correct option is B. only 2 

D. all – i, ii, iii and iv

National banks play a pivotal role in the country's financial system by providing banking services and stability. The bank allows for the safe holding of deposits and lending to help facilitate business.

 Enforce monetary policy objectives; - promote domestic and international competition; - enhance efficiency; - maintain financial stability and security; - protect consumers; - encourage information flow and prudential decision making; and - achieve general economic and social policy objectives.

The financial sector in Ethiopia consists of formal, semiformal and informal institutions.The Formal Sector The major formal financial institutions operating in Ethiopia are banks, insurance companies and microfinance institutions.

• Accepting Deposit.
• Advancing Of Loans.
• Discounting Of Bill Of Exchange.
• Cheque Payment.
• Remittance.
• Collection And Payment Of Credit Instruments.
• Foreign Currency Exchange.
• Consultancy.

The foundation of the Kaizen method consists of 5 founding elements:

• teamwork,
• personal discipline,
• improved morale,
• quality circles, and.
• suggestions for improvement.

1. She has six good black pens.

2. Get me some cool pure water.

3. This is an interesting big old book.

4. It is one big brown table.

5. I saw six great old elephants in this jungle.

6. They went to two Amazing big temples.

7. Buy me one attractive green dress.

8. Look at the three colourful young birds.

9. Here is the great big brown book.

10.  I love two creamy chocolate ice-creams.

1. further 

2. more popular 

3. tall 

4. stronger 

5. high 

6. richer

7. younger 

8. greatest 

9. best 

10. many 

11. many 

12. big 

13. black 

14. faster 

15. prettier

1. Seed formation is a more dependable phenomenon since pollination and fertilization are independent of water. 

2. Reserve food in seeds nourishes the young seedlings until they are capable of photosynthesis on their own. 

3. Seeds have better adaptive strategies for dispersal to new habitats. 

4. The hard seed coats protect the young embryo till it develops completely.

5. Seeds produce new genetic combinations leading to variations as they are products of sexual reproduction.

The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece is called elution.

• DNA is more stable because even if the two complementary strands are separated by factors like heat, they can come together again. But RNA is more labile and easily degradable because of an additional – OH group in the 2 position of ribose in every nucleotide. 
• DNA does not acy as enzyme. But some RNA molecules act as enzymes and therefore, are more reactive. 
• DNA has Thymine which gives additional stability. RNA molecules do nit have thymine. 
• Both RNA and DNA can mutate. But RNA mutates at a faster rate as it is less stable.

Tools required for recombinant DNA technology. Restriction enzymes, cloning vector, competent host, polymerase enzymes, ligases.

Convergent Evolution: It creates analogous structures that evolve for same function and hence having similarities. 

Eg: Sweet potato (root, modification) and Potato (Stem modification)

Divergent Evolution: The same structure developed along different direction due to adaptations to different need. This is divergent evolution and these structures are homologous. 

Eg: Thorns and tendrils of Bougainvillea and Cucurbita.

• Increase phagacytosis of sperms within the uterus. 
• Copper ions released by them decrease motility and fertilizing capacity of sperms. 
• Hormone releasing IUDS prevent implantation. 
• Hormone releasing IUDS also make the cervix hostile for sperms.

The agents which causes cancer are called carcinogens. 

1. Physical carcinogens- Ionising radiations, X-rays 

2. Chemical carcinogens- Tobacco Smoke 

3. Biological Carcinogens- Oncogenic viruses

Allele frequencies in a population are stable and are constant from generation to generation. 

OR 

Allele frequency or gene frequency in a population (gene pool) remains constant from generation to generation unless there are factors to upset it. 

Role of factors that affect Hardy – weinberg equilibrium. Gene flow: It is the movement of genes or alleles from one population to another when there is a migration of a section of population to another place and population this changes gene frequencies. 

Genetic drift: It is the random ‘ change in the gene frequency by chance (in small populations). The change in gene frequency in the new population may be so different that the members become a different species (founder’s effect). 

Mutation: It is the sudden hertitable change in genetic material which results in new genotypes and phenotypes, thus altering the gene frequency. 

Genetic recombination: It occurs during gametogenesis (meiosis) and results in variations. This would result in gene frequency over a period of time. 

Natural selection: Variations that occur as a result of mutations or recombinations or due to gene flow or genetic drift inhance reproductive success or fitness survivors would – leave more progeny and over a period of time the gene frequency of the population change.

1. Habitat loss and fragmentation: Many large habitats like forests have been destroyed by Man either for cultivation or for conversion to grasslands and broken up into small fragments which leads to the decline in the population of living organsims. 

2. Over – Exploitation: Over – Exploitation of natural resources for the purpose of food, shelter and other purposes and harvesting of many mareine fish populations by humans leads to the elimination of many species. 

3. Allien species invasions: Unintentional or deliberate introduction of allien species may cause the decline or extinction of indigenous species as they may turn invasive. 

4. Co – extinctions: When a species becomes extinct, the plant and animal species associated with it in an obligatory way also becomes estinct.

Carcinogens: Agents that cause cancer are called carcinogens. 

Groups of carcenogens: 

Physical agents : X – rays, gamma rays, UV rays 

Chemical agents: Chemical present in tobacco smoke. 

Biological agents: Oncogenic viruses.

Bt toxin: 

• Bt toxin is an insecticidal protein formed in the form of crystals during a particular phase of the growth of Bacillus thuringensis. 
• It exists are inactive protoxin in bacteria and is converted into an active form of toxin in insect due to the alkaline pH of the gut. 
• Active toxin binds to the surface of epithelial cells of the midgut and creates pores which cause cell swelling and lysis and eventually the death of the insect.

(C) Sodium and chloride

Out – crossing : It is the mating of the animals of the same breed but which have no common ancustors on either side of the pedigree up to 4 – 6 generations. 

Cross breeding : It is the mating of superior males of one breed with superior females of another breed both with desirable characters). 

Inter – specific hybridization : It is the mating of male and females of two different but related species.

(B) Potassium

1. Twisted and imbricate 

2. Hibiscus and cassia

0.1 M BaCl₂ has highest boiling point under 1 atm pressure.

Difference between Schottky and Frenkel defects.

The degree of dissociation will be 100%