Which of the following statements refers to the process of 'parthenogenesis'?
1. It is a natural form of asexual reproduction in which the growth and development of embryos occur without fertilization.
2. It is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body.
3. It is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg inside of the female's body.
Select the correct answer using the codes given below.

Correct option is A

The correct answer is (a) Only 1
Explanation:
· Parthenogenesis is a type of asexual reproduction where an egg develops into an organism without fertilization.
· It occurs naturally in plants, invertebrates (like bees), and some vertebrates (reptiles, amphibians).
· There is no involvement of male gametes.
· It results in offspring that are genetically identical to the mother.
· It is different from sexual reproduction which involves both male and female gametes.
Information Booster:
· It is common in honey bees, aphids, and some lizards.
· Artificial parthenogenesis can be induced in labs using chemicals or electric shocks.
· It was first observed in 18th-century experiments.
· It provides an evolutionary advantage in isolated populations.
· It does not occur naturally in mammals.
Additional Information:
· Statement 2 describes external fertilization, seen in amphibians and fish.
· Statement 3 refers to internal fertilization, seen in mammals, birds, and reptiles.
· Both statements 2 and 3 describe sexual reproduction, not parthenogenesis.
· Parthenogenesis plays a vital role in species survival in absence of males.