Test: Reproduction in Animals- 2

The age at which boys and girls start producing male and female gametes is called puberty. Puberty end when an adolescent reaches reproductive maturity.

The formation of spermatozoa is called spermatogenesis. Spermatogenesis occurs in testes of male at puberty to form male gametes.

Testes is primary sex organ of male in which sperms are produced at maturity. Sperms are male gametes produced in large number for fertilization.

The process in which fusion of male and female gamete takes place is called fertilization. Fertilization leads to formation of single cell called zygote.

The disease which can be transmitted from one person to other person during sexual intercourse is called sexually transmitted disease. Condom can prevent STD’s as well as unwanted pregnancy.

Fallopian tube is a long duct that transfer ovum from ovary to uterus. Fallopian tube is also known as oviduct.

Chromosomes is thread like structure present in nucleus of cell to carry traits from one generation to next generation. Each organism contains certain number of chromosome.

In yeast, asexual reproduction takes place by budding. During budding small outgrowth is formed that enlarge and separate from parent body.

Female reproductive system contains a pair of ovaries. Ovaries produce female gamete called ovum and secrete female hormone.

Testis is the primary sex organ of male that produces sperm. A pair of testes is located in scrotum descending form abdominal cavity.

In human female one mature egg is released every month from ovaries in the middle of menstrual cycle.

The process during which male release their sperm in genital organ of female is called copulation. The copulatory organ of human male is called penis.

The unfertilized egg always has one X chromosome because egg is formed by meiosis cell division in which number of chromosome reduces to half.

Development of baby takes place inside the uterus of female. Fertilized egg attach to wall of uterus with the help of placenta to supply nutrient and oxygen.

Sperm is male gamete while ovum is female gamete produce by meiosis cell division. Both sperm and ovum are single celled that fuse to produce zygote.

When fertilization takes place inside the female body, it is called internal fertilization. In human beings, fertilization takes place in fallopian tube of female.

Zygote is the first cell that begins the life of an organism. Zygote is formed by fusion between male and female gamete.

The first cloned sheep was named Dolly. Cloning is the technique in which identical organism is produced asexually.

The fertilization which takes place inside the female body is called as internal fertilization because development to new organism takes place safely inside the female body.