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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

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प्रश्न

How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

लघु उत्तर
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उत्तर

Dogs have multiple births, so several eggs are released and develop at the same time. If fertilised, each egg implants in the uterine wall and develops into a puppy. The gestation period in dogs is about 56 to 72 days, and a typical litter contains approximately six puppies, although this number may vary depending on the breed. Therefore, it can be concluded that approximately 6 eggs were released by the ovary, resulting in the birth of 6 puppies.

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पाठ 2: Human Reproduction - EXERCISES [पृष्ठ ४०]

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एनसीईआरटी Biology [English] Class 12
पाठ 2 Human Reproduction
EXERCISES | Q 21. | पृष्ठ ४०
नूतन Biology [English] Class 12 ISC
पाठ 2 Human Reproduction
NCERT EXERCISES | Q 21. | पृष्ठ ११७

संबंधित प्रश्‍न

 Why does menstruation occur?


Write two major functions of ovary.


Put a tick mark (✓) against the correct alternative in the following statement:

Internally, the uterus opens into:


Differentiate between: 

Prostate gland and cowper’s gland (the nature of secretion) 


Sketch the labelled diagram.

Human female reproductive system.


Name two hormones secreted by ovary of female reproductive system.


Give appropriate term of the following:
The process of fusion of ovum and sperm.


Choose the correct answer:
The onset of menstruation in the female is termed __________


State the Location:

Bartholin’s glands.


Hormones secreted by the ovary of the female reproductive system.


Estrogen is secreted by ______


Identify the term used for isthmus.


Penis is homologous to ____________.


Breasts are the modified ______ glands.


Ovulation occurs under the influence of ______.


To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.

If the peak of Hormone A does not appear in the study for Subject 1, which of the following statement is true?


To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.

 

Which of the following statements is true about the subjects? 


In the given Figure label the parts and mention their functions

  1. Production of egg
  2. Site of fertilisation
  3. Site of implantation
  4. Entry of the sperms

Which is a pear-shaped muscular organ in females? 


What is parturition?


Female reproductive organs and associated functions are given below in column A and B. Fill the blank boxes.

Column A Column B
Ovaries Ovulation
Oviduct a
b Pregnancy
Vagina Birth

Draw a neat diagram of the female reproductive system and label the parts associated with the following:

(a) production of gamete

(b) site of fertilisation

(c) site of implantation

(d) birth canal


Bartholin's glands are homologous to ______.


Sketch and label - Graafian follicle.


List two roles of the Oviduct in the human reproductive system.


The _____ is also called the womb.


The ______ is also called the womb.


Clitoris is equivalent to the male penis.


Which of the following is not a component of Fallopian tube?


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