हिंदी

In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote?

Advertisements
Advertisements

प्रश्न

In tobacco plant, the male gametes have twenty four chromosomes.

What is the number of chromosomes in the female gamete?

What is the number of chromosomes in the zygote?

संक्षेप में उत्तर
Advertisements

उत्तर

Male and female gametes are produced through meiosis and have the same number of chromosomes. So, the number of chromosomes in the female gamete of a tobacco plant will be 24.

Since a zygote is formed by the fusion of male and female gametes, it would contain double the number of chromosomes than male or female gametes. So, the number of chromosomes in the zygote of a tobacco plant will be 48.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: How do Organisms Reproduce? - Short Answer Questions [पृष्ठ ७०]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science Exemplar Class 10
अध्याय 8 How do Organisms Reproduce?
Short Answer Questions | Q 37. | पृष्ठ ७०

संबंधित प्रश्न

What is the causative organism for the following disease?

Gonorrhoea


Name one sexually transmitted disease for which no definite cure has been found so far. What is the causative organism of this disease?


Which method of contraception prevents fertilised egg from being implanted in the uterus?


What substances are contained in vaginal pills, used as contraceptives? How do they work?


Which of the following method of contraception protects a person from acquiring a sexually transmitted disease?
(a) oral pills
(b) condom
(c) copper-T
(d) surgery


The sexually transmitted disease which is caused by bacteria is :
(a) malaria
(b) diarrhoea
(c) gonorrhoea
(d) AIDS


What are Sexually Transitted Diseases (STD)? List two viral and two bacterial STDs. 


Define amniocentesis.


Differentiate between the following:

Spermatogenesis and oogenesis


Name the kind of diseases/disorders and any two symptoms that are likely to occur in humans if Mutation in the gene that codes for an enzyme phenylalanine hydroxylase occurs.


Draw a well labelled diagram of L.S. human testis.


What can you suggest to your classmates to keep himself/herself clean and healthy?


‘Saheli’ a new oral contraceptive developed by ______.


Which of the following method of contraception protects from acquiring sexually transmitted diseases?


There is a greater possibility for the evolution of a new species in organisms which reproduce by ______


Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?


What is the full form of RCH?


______ is responsible for the declining female: male ratio.


Comment on the Reproductive and Child Health Care programme of the government to improve the reproductive health of the people.


Which of the following groups of techniques is made available at Assisted Reproductive Technology (ART) centres for addressing infertility?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×