1. Sexual reproduction results in biological diversity.
2. Biodiversity allows organisms to easily adapt to new environments.
3. New species are created through sexual reproduction.
4. Food or grain is produced in the plant body through sexual reproduction.
5. Sexual reproduction produces seeds that protect the plant’s lineage.
6. Organisms increase the number of their species through reproduction.
7. The balance of the number of organisms in the biosphere is maintained through reproduction.
Characters of sexual reproduction
1. Sexual reproduction requires two separate reproductive cells or gametes.
2. Haploid germ cells participate in sexual reproduction.
3. Sexual reproduction results in the formation of a zygote.
4. Asexual reproduction usually takes place under unfavorable conditions in class plants.
5. The diploid state begins after sexual reproduction.
6. Crossing over occurs in sexual reproduction and new traits emerge.
7. Organisms of this genus produce gametes in the process of mitosis.
8. The process of fertilization is dependent on the mating potential of the gametes.
9. Sexual reproduction takes longer to produce offspring.
Sexual reproduction definition
The reproduction that takes place by the union of sperm and egg is called sexual reproduction. The reproductive organs of plants are flowers. Flowers produce sperm and ovules. Sexual reproduction occurs when sperm and ovum meet. Sexual reproduction in plants is extremely diverse. A flower is a shoot specially adapted for plant reproduction.
Plant breeding definition
The process by which new plants are created from the mother plant is called plant reproduction. The branch of biology that deals with plant embryogenesis, embryo development, fertilization and zygote development is called plant reproductive science. The branch of biology that deals with embryo creation and development is called embryology.
Plant reproduction is mainly of three types. Sexual reproduction, asexual reproduction and parthenogenesis.
Prevention of HIV
- Social and religious norms should be followed.
- You should associate with a trusted partner.
- Condom should be used during sexual intercourse.
- Avoid taking intravenous drugs.
- Do not reuse the same syringe.
- Blood should be tested for virus-free before taking it.
- Not using the same blade more than once in the salon.
- The diseased person should be treated.
- Sex workers should be made aware of safe sex.
- People should be made aware.
Treatment of AIDS
No cure for AIDS has been discovered till date. Treatment of AIDS with drugs is called anti-retroviral therapy or ART. In the treatment of AIDS, the Food and Drug Administration-FDA (USA) recommends taking two groups of drugs together. This type of treatment is known as Highly Active Antiretroviral Therapy-HAART. The first group of drugs are Nucleoside reverse transcriptase inhibitors which delay its transmission. The second group of drugs is Protease inhibitors which block the replication of HIV. Some of the approved drugs are Fusion Inhibitors, Entry Inhibitors, Integrase Inhibitors, Pharmacokinetic Enhancers etc.
Diagnosis of AIDS
- Antibody test, test, western blot test etc.
- Blood T-helper cells or CD-4 cells are tested. (The normal range of CD-4 cells is 500-1,500 cells/mm3).
Symptoms of AIDS
- Fever, headache and fatigue.
- Dry phlegm.
- Pneumonia occurs and wheezing occurs.
- Lymph nodes become swollen and lymphoma becomes cancerous.
- Abdominal pain and loss of appetite.
- Arthritis causes severe pain and burning.
- Karposi sarcoma is a cancer (brown spots) of the skin and face.
- Troxoplasmosis occurs in the brain and thinking power is reduced.
- Decreased memory and vision.
- Body weight decreases.
- The immune system is lost and the patient dies.
Ways of HIV transmission
- Any type of (oral, vaginal, anal) sexual intercourse between men and women.
- Infants born to infected mothers.
- Drinking milk from an infected mother.
- If you take the blood of an infected person.
- If using contaminated syringes.
- If the same blade or razor is used by different people.
- Through dental treatment or surgery.
Spread of AIDS
In 1979, this germ was first found in the human body. The virus was first transferred to humans from monkeys in Africa. Later it spread to America and Europe. This disease is not spread by touch, sports, hugs, mosquito bites, clothes etc. It is spread only through sexual contact and blood. In 2000, there were about 3.6 million AIDS patients in the world. 36 million died of AIDS in the world in 2012.