Second Year Biology Chapter 18 Short Questions Online Preparation (Reproduction)

Online Short Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 18 Short Questions Preparation

  • Total Questions10

  • Available Sets6

Start Test Download PDF

Biology - 12th Class Biology Chapter 18 Short Questions Preparation

Question # 1

Differentiate identical twins and triplets.

  • Ans 1: Identical twins: If new born organisms are the product of mitosis and they have same genetic makeup, they are called identical twins.
  • Ans 2: Identical Triplets: In some cases, more than one egg are produced by the female and all eggs are independently fertilized two or more zygote. These zygote develops into new offspring, but with different genetic combination. such twins or triplets are called fraternal twins or triplets. They are produced sexually.
Submit

Prepare Complete Set Wise Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

12th Class Biology Chapter 18 Short Questions Preparation - Set 1

Question # 1

Differentiate identical twins and triplets.

  • Ans 1: Identical twins: If new born organisms are the product of mitosis and they have same genetic makeup, they are called identical twins.
  • Ans 2: Identical Triplets: In some cases, more than one egg are produced by the female and all eggs are independently fertilized two or more zygote. These zygote develops into new offspring, but with different genetic combination. such twins or triplets are called fraternal twins or triplets. They are produced sexually.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

Define haploid parthenogenesis.

  • Ans 1: In the honey bees male develops without fertilization of egg. The queen bee carrying male gametes from the male has the ability to lay eggs that have not been fertilized.If these eggs are not fertilized then they develops in to haploid offspring. It is called haploid parthenogenesis.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

Define labour pain.

  • Ans 1: At the time of birth, the reduction of progesterone level stimulates pituitary gland to produce oxytocin. This induces labour pain or contraction of the uterus wall.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

Give two disadvantages of cloning.

  • Ans 1: The entire organism produced by cloning are identical to each other and no genetic variability is produced.
  • Ans 2: All the organism will not show any resistant to disease if it outbreaks and all the generation will be died.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

How Implantation differes from gestation?

  • Ans 1: Implantation: Implantation is when the new human created at fertilization implants in the uterus. The newly created offspring,technically referred to as a blastocyst,travels to the uterus through the fallopian tube and implants in the wall of the uterus.
  • Ans 2: Gestation: Gestation means carrying the embryo inside the females uterus.
    It is the time period from conception to birth of the child.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

What is oestrous cycle?

  • Ans 1: Oestrous cycle is a reproductive cycle found in all female mammals except human female. In this cycle, the estrogen production prepares the uterus for conception partly and also follicle develops ova.At this stage female needs a physical stimulus of mating for ovulation. She exhibits a desire for mating or is said to be on heat.
Submit

ic-science-white
Biology
18th Chapter

12th Class Biology Chapter 18 Short Questions

Here you can prepare 12th Class Biology Chapter 18 (Reproduction). Click the button for 100% free full practice.

Start Chapter 18 Preparation