Chromosome and Sex determination || Solved Q/A to practice for S.E.E. - Exam || Part-2

By Pravin Keshari -

Chromosome and Sex determination

Part-2 

Very short questions and answers for S.E.E. students



Questions and answers to practice for S.E.E. examination

1) What is telocentric chromosome?
Answer: The chromosome having cetnromere at one end of the chromatid is called telocentric chromosome.


2) What are hereditary characteristics?
Answer: The characteristics which are transmitted from one generation to another are called hereditary characteristics.


3) How many types of chromosomes are there on the basis of position of centromere?
Answer: On the basis of position of centromere, chromosomes are of following types:
        (i) Metacentric
        (ii) Sub-metacentric
        (iii) Acrocentric     and
        (iv) Telocentric


4) What types of cells contain haploid chromosomes?
Answer: Gametes (male gamete or female gamete) contain haploid chromosomes.


5) Write any two examples of sex-linked diseases.
Answer: Any two examples of sex-linked diseases are:
        (i) Haemophilia and
        (ii) Color blindness


6) What is haploid cell?
Answer: The cell having 'n' number of chromosomes is called a haploid cell.


7) Where are genes found?
Answer: Genes are found in chromosomes.


8) What us chromosomal disorder? Write its examples.
Answer: The disorder caused in human beings due to increase or decrease in the number of chromosomes is called chromosomal disorder. For example, Haemophilia, Down's syndrome, Turner's syndrome, etc.


9) Write down the major function of chromosome.
Answer: The major function of chromosome is to transmit parental characteristics to their offsprings.


10) What is a diploid cell?
Answer: The cell having chromosomes in pairs or '2n' number of chromosomes is called diploid cell.


11) What is the cause of Turner's syndrome?
Answer: The major cause of Turner's syndrome is lack of X-chromosome. In this condition, the number of chromosome becomes 45 + X0.


12) Write down the major cause of Klinfelter's syndrome.
Answer: The major causes of Klinfelter's syndrome is the addition of sex chromosome (X-chromosome) and the number of chromosomes becomes 47, XXY karyotype.


13) What is Klinfelter's syndrome?
Answer: Klinfelter's syndrome is the chromosomal disorder which occurs due to addition of sex chromosome (X-chromosome) and the number of chromosomes becomes 47, XXY karyotype.


14) Write down the major cause of Down's syndrome.
Answer: The major cause of Down's syndrome is the addition of extra chromosome in the 21 chromosome.


15) What is the full form of DNA?
Answer: The full form of DNA is Deoxy-Ribo Nucleic Acid.
 

      More questions will be given in another blog post.

    ____________________________________________________________________________________

For any kind of query in any chapter of S.E.E. science, mail your question/s on 

pravin.keshari.31@gmail.com

Follow me on social media:

Thank You!!!

Location: Siddharthanagar, Nepal

Comments

Post a Comment

Please do not comment any spam link in the comment box.

Popular Posts

1000+ MCQs for PCL Nursing Entrance Preparation || Part-01 ||

By Pravin Keshari -
Image
 1000+ MCQs for PCL Nursing Entrance Preparation Part-1 With the changing needs as well as Nepal, Government's health policy, CTEVT took an action to respond to these needs; as a result CTEVT has started the PCL Nursing course. PCL Nursing is one of the prominent and popular disciplines within the Nursing profession. PCL Nursing has its full form of Proficiency Certificate Level in Nursing . In this particular series of " PCL Nursing Entrance Preparation ", each set will contain 50 MCQs (with Answer key ) for students to solve. About 1000 MCQs will be provided related with the entrance preparation for PCL Nursing or Staff Nurse.  Notes will also be posted, if required.  If you find this blog useful after reading, do not forget to share it with your friends. Refer to your friends, so that they can also enjoy these questions. Need full PDF syllabus of PCL Nursing??? Click on the icon below to download the full syllabus in PDF Your MCQs for PCL Nursing starts from here
Read more

Set of 50 MCQ's for CTEVT & Bridge Course || Part-02 ||

By Pravin Keshari -
Image
Set of 50 MCQ's for CTEVT & Bridge Course Part-02 In this section you will find 50+ questions for practice. These questions are helpful for  CTEVT  as well as  Bridge course  entrance preparation of Science stream.  Everyday a blog post will be posted with 50+ questions upto 10 days. These questions are available free of cost to all students.  The 50 questions are classified as:     1) English - 10 questions         2) Chemistry - 10 questions     3) Physics - 10 questions     4) Biology - 10 questions     5) Maths - 10 questions Solve the MCQ's by yourself and check your aptitude. If you get stuck at any question, comment the question number(with your full name and phone number) below in the comment section. We will try to reply each and every comments. 50 MCQ for CTEVT & Bridge Course English 1) He is...........European singer.     a. a     b. an     c. the     d. none 2) Ow! I ....... my finger.     a. have cut     b. cut     c. will cut     d. had cut 3) Put a tax..
Read more

Basics of Chemistry || Part-01 ||

By Pravin Keshari -
Image
 Basics of Chemistry Part-01   ( First 20 elements) Before understanding Chemistry, you must understand and learn about first 20 elements of the modern periodic table. Learning first 20 elements gives you basic idea about chemistry and then you will be able to do more. Click here for High Quality Picture of Modern Periodic Table Let us start with first 20 elements. List of first 20 elements Atomic number Elements Symbol No. of electrons No. of protons No. of neutrons             1 Hydrogen H 1 1 0 2 Helium He 2 2 2 3 Lithium Li 3 3 4 4 Beryllium Be 4 4 5 5 Boron B 5 5 6 6
Read more

Human Nervous and Glandular system || Solved Q/A to practice for S.E.E. - Exam || Part-1

By Pravin Keshari -
Image
Human Nervous and Glandular System Part-1  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1) What are nerves? Answer: Nerves are the communication lines for transmission of impulses from one part of body to another. Nerves are elongated, slender, thread like structures arising from the brain and spinal cord. 2) What is a neuron (or a nerve cell)? Answer: Neuron (nerve cell) is a highly specialized cell  which acts as the structural and functional unit of nervous system. 3) Name the three membranes that surround the brain and spinal cord. Answer: The three membranes that surround the brain and spinal cord are duramater, piamater and archanoid mater. 4) What is cerebrospinal fluid? Answer: Cerebrospinal fluid is the fluid present between the layers of meninges. 5) Where is cerebrospinal fluid found? Answer: Cerebrospinal fluid is found between piamater and archanoid matter. 6) Write down the surface area of the cerebrum. Answ
Read more

50+ MCQ's related with Basics of Chemistry & Periodic Table

By Pravin Keshari -
Image
50 +MCQ's related with  Basics of Chemistry & Periodic Table In this section you can find the MCQ's related with Basics of chemistry (Language of chemistry) and Periodic table.  This blog post is useful for class-10, CTVET Entrance preparation and Bridge Course entrance preparation. The questions taken here are from past CTEVT and +2 entrance exams taken by different institutions. 1) What is the electronic configuration of Na?     a) 2,6,5     b) 2,8,1     c) 2,8,8,1     d) 2,9 2) How many electrons are there in Mg⁺⁺?     a) 9     b) 10     c) 11     d) 12 3) How many electrons are found in Ca atom?     a) 16     b) 18     c) 20     d) 22 4) What is the symbol of Mercury?     a) M     b) Mr     c) Pb     d) Hg 5) What is the symbol of Potassium?     a) P     b) Po     c) K     d) Ka 6) Which one is the radical of aluminum?     a) Al⁺     b) Al ⁺ ⁺     c) Al ⁺ ⁺ ⁺     d) Al ⁻ ⁻ ⁻ 7) What is the symbol of zinc?     a) Z     b) Zi     c) Zc     d) Zn 8) What is the symbol of l
Read more

Basics of Chemistry || Part-02 ||

By Pravin Keshari -
Image
Basics of Chemistry Part-02   ( Atomic structure of f irst 20 elements) In the previous part we learnt about details of first 20 element and we calculated atomic weight of them. That was the first and most important step in studying chemistry. Without understanding about elements, their symbol and valancy, it is impossible to understand chemistry. So, for that, we have to first draw and understand the atomic structure of all first 20 elements. Click here for  Basics of Chemistry || Part-01 || So, let us start... Atomic Structure of first 20 elements Atomic Structure of Hydrogen (H) Atomic Structure of Helium (He) Atomic Structure of Lithium (Li) Atomic Structure of Beryllium (Be) Atomic Structure of Boron (B) Atomic Structure of Carbon (C) Atomic Structure of Nitrogen (N) Atomic Structure of Oxygen (O) Atomic Structure of Fluorine (F) Atomic Structure of Neon (Ne) Atomic Structure of Sodium (Na) Atomic Structure of Magnesium (Mg) Atomic Structure of Aluminum (Al) Atomic Structure of Si
Read more

Force || Solved Q/A for S.E.E. - Exam || Part-1

By Pravin Keshari -
Image
FORCE Part-1  Very short questions and answers for S.E.E. students Questions and answers to practice for S.E.E. examination 1)What is gravitation or gravitational force? Answer: The force with which any two objects attract each other is called gravitation or gravitational force. 2) State the factors that affect the gravitational force. Answer: The factors that affect the gravitational force are:     (i) Mass of two heavenly bodies.     (ii) Distance between their centers . 3) What is heliocentric theory? Answer: Heliocentric theory states that the sun lies at the center  of the universe and all the planets and satellites revolve around the sun. 4) What is geocentric theory? Answer: Geocentric theory states that the earth remains at the center of the universe and the sun, moon and other planets revolve around the earth. 5) State Newton's universal law of gravitation. Answer: Newton's universal law of gravitation states that, "The force of attraction between two bodies is di
Read more

प्राविधिक प्रहरी नायव निरीक्षक - प्रथम पत्र (नेपाल प्रहरी) || Forensics Paper 2078-09-29

By Pravin Keshari -
Image
प्राविधिक प्रहरी नायव निरीक्षक - प्रथम पत्र (नेपाल प्रहरी) नेपाल पुलिस अन्तर्गत प्राविधिक प्रहरी को विधि विज्ञान (प्राविधिक प्रहरी नायव निरीक्षक) का लागी प्रथम पत्रमा सोधिएका प्रश्नहरु यस प्रकार छन्।  यो प्रश्नहौ लोकसेवा आयोग द्वारा सोधिएको संयुक्त परिक्षा अनतर्गत विधि विज्ञानका लागि सोधिएको हो।  मिति २०७८ - ०९ -२९ गते को दिन प्रथम पत्र र ३० गते द्वितीय पत्र (प्रहरी सेवा सम्बन्धि) परिक्षा संचालन भएको हो।  Location of Central Police Forensic Science Laboratory: Click here समय ३ घण्टा  पत्र : प्रथम                                                                                                               पुर्णाङ्क : १०० Subject: Forensic Science Section 'A' Biology 1. State and explain the Mendal's law of independent assortment. [5] 2. Differentiate between prokaryotic cell and eukaryotic cell. [5] 3. Describe structural evidences of evolution with examples. [5] 4. Enlist effects of pesticides o n environment. [5] 5. Explain  in brief on structure, reproduction and economic
Read more

Blood Circulation in Human Body || Solved Q/A for practice for S.E.E. - Exam || Part-3

By Pravin Keshari -
Image
Blood Circulation in Human Body Part-3:  Very short questions and answers for S.E.E. students Questions and answers for practice for S.E.E. examination 1) Write down the use of sphygmomanometer. Answer: Sphygmomamnometer is used to measure blood pressure. 2) What is uric acid? Answer: The acid produced in the body as a by-product due to decomposition of purine present in the cells and food is called uric acid. 3) Where are red blood cells formed and destroyed? Answer: Red blood cells or erythrocytes are formed in bone marrow and destroyed in the liver. 4) What is diastolic blood pressure? Write down the diastolic pressure of healthy young person. Answer: When ventricles relax the pressure of blood inside the arteries is comparatively less and this pressure is called diastolic pressure or diastole. It is about 80 mm of Hg in a healthy young person. 5) What is systolic pressure? Write down the systolic pressure of a healthy young person. Answer: When ventricles contract, the pressur
Read more

Set of 50 MCQ's for CTEVT & Bridge Course || Part-01 ||

By Pravin Keshari -
Image
Set of 50 MCQ's for CTEVT & Bridge Course Part-01 In this section you will find 50+ questions for practice. These questions are helpful for CTEVT as well as Bridge course entrance preparation of Science stream.  Everyday a blog post will be posted with 50+ questions upto 10 days. These questions are available free of cost to all students.  The 50 questions are classified as:     1) English - 10 questions          2) Chemistry - 10 questions     3) Physics - 10 questions     4) Biology - 10 questions     5) Maths - 10 questions Solve the MCQ's by yourself and check your aptitude. If you get stuck at any question, comment the question number(with your full name and phone number) below in the comment section. We will try to reply each and every comments. 50 MCQ for CTEVT & Bridge Course English 1) Neither he nor his brothers.............the answer.     a. knows     b. has known     c. is knowing     d. know 2) She had her brother..........her room.     a. cleans     b. c
Read more