IGNOU LSE 03 Guess Paper JUNE 2021

Why choose Senrig Guess Paper

There are many motives why you ought to move for SENRIG Solved Guess Papers. Some of them are as follows:

·        Accessibility to masses of questions:

Every SENRIG Guess Papers on hand nowadays has masses of questions. For working towards purpose, even in case you try and clear up the query paper after revising the precise syllabus, you should have an concept that in which do you stand. Huge wide variety of questions assist to cowl the complete syllabus, so that you don’t leave out anything. Reading and working towards numerous form of questions over and over will assist to enhance the studying abilties.

·        Helps to realize approximately the patter of very last exam:

SENRIG Guess Papers are the suitable instance of very last examination paper due to the fact they're made to assist college students get cushty with the Performa of real query paper and attempt it at domestic earlier than simply appearing, so that you have already got an concept of the way does an examination paper will appearance like. It will reduce the tension and college students will now no longer get panic withinside the exam hall.

·        Time invested in complete syllabus equally:

You don’t must pressure anymore approximately the chapters you did, otherwise you neglected due to the fact SENRIG Solved Guess Papers will cowl the complete syllabus at once. These are crafted from studying all of the primary sections of every subject. So, you'll have all of the questions solutions at one vicinity and you may now no longer must look at too many books altogether, furthermore it's going to assist you keep a number of your time.

·        Students get to realize approximately their electricity and weaknesses:

With the assist of SENRIG Guess Papers, college students can realize that during which subjects they're nice at, and wherein chapters they want greater exercise. This domestic exercise offers actuality in addition to a diploma of understanding to decorate the shortcomings. This may even assist enhance the self assurance and operating abilties in college students.

·        Reading and writing and abilties are magnified:

The ideal method to rehearse the syllabus is to exercise the SENRIG Solved Guess Papers. It calls for a massive quantity of attention to get nice at it. Your writing velocity could be progressed eventually, in case you preserve working towards it on. It will assist you loads to your very last exam as nicely in case you set a particular quantity of time to complete it at domestic.


One of the important thing methods of cracking Indira Gandhi National Open University examination is through growing an intensive expertise of present exam pattern.

For this, there may be a want of SENRIG Guess Paper because it presents essential facts approximately syllabus and subjects protected withinside the exams. SENRIG Solved Guess Papers are a number of the maximum true supply of facts.

Indira Gandhi National Open University is one of the most efficient Universities in India which gives brilliant coaching thru the Open and Distance Learning (ODL) mode.

year, a massive wide variety of college students practice for admission in SENRIG. Contenders who're inclined to crack SENRIG Exam might also additionally take help from SENRIG Solved Guess Papers in Hindi and English. Just hit on hyperlinks to get SENRIG Solved Guess Papers in PDF format.

The number one component that moves a chord while discussing phrases and assessments making plans is practice. While a number of the scholars are placing all their efforts and operating so tough to research the entirety off and a few are simply looking to get the passing marks, there may be, nearly always, a constant feeling of apprehension. And there may be handiest one manner to conquer this example with the aid of using placing your principal efforts withinside the proper direction. 

In order to perform powerful examination preparation, SENRIG Solved Guess Papers make the exceptional exam asset on the way to rehearse all of the subjects. SENRIG Solved Guess Paper consists of very essential questions depending on the concise research and of contemporary evaluation sample and in advance 12 months query papers.

IGNOU LSE 03 Guess Paper JUNE 2021

IGNOU LSE 03 Guess Paper JUNE 2021

1.  Write short notes on any four of the following :

a)  Effect of environmental factors in sex determination

Environmental intercourse dedication is the established order of intercourse through a non-genetic cue, inclusive of nutrient availability, skilled inside a discrete length after fertilization. Environmental elements which regularly impact intercourse dedication at some point of improvement or sexual maturation encompass mild depth and photoperiod, temperature, nutrient availability, and pheromones emitted through surrounding flowers or animals.

This is in comparison to genotypic intercourse dedication, which establishes intercourse at fertilization through genetic elements inclusive of intercourse chromosomes. Under proper environmental intercourse dedication, as soon as intercourse is decided, it's far constant and can not be switched again. Environmental intercourse dedication isn't like a few styles of sequential hermaphroditism wherein the intercourse is decided flexibly after fertilization for the duration of the organism’s life.

Environmental intercourse dedication is just like sure forms[vague] of sexual choice in that there are regularly specific and opposing selective pressures on ladies and men due to the prices of reproduction. Sexual choice is not unusualplace for the duration of the tree of life (maximum acknowledged in birds); regularly ensuing in sexual dimorphism, or length and look variations among sexes withinside the equal species.

In environmental intercourse dedication, selective pressures over evolutionary time have decided on for flexibility in intercourse dedication to optimize health in a heterogenous surroundings due to the specific prices of intercourse in ladies and men.

Certain environmental situations differentially have an effect on every intercourse such that it might be useful to end up one intercourse and now no longer the other.

This is specifically pertinent for sessile organisms that can not pass to a specific surroundings. In flowers, for example, girl sexual characteristic is regularly extra energetically pricey due to the fact as soon as fertilized they need to use vast saved power to provide fruits, seeds, or sporophytes while adult males need to best produce sperm (and sperm-containing structure; antheridium in seedless flowers, and pollen in seed flowers).

(b) Mitochondrial proteins

(c) Quinic acid metabolic genes in Neurospora crassa

(d) Oncogenic viruses

(e) Genetic drift

2. (a) Explain how environment affects the gene expression in organisms.

     (b) Describe sex mosaics.

3. Describe the origin, diagnostic features and the phenotypic effects of inversions and translocations.

4. What is mutation ? Differentiate between

(i) somatic and gametic mutations, and

(ii) spontaneous and induced mutations.

5. 'Discuss the role of heredity and environment with the example of twin studies.

6. Write short notes on any two of the following :

(a) Linkage

(b) RNA as Genetic Material

(c) ABO Blood Group System

(d) Hardy-Weinberg Law

7.  Read the following statements and write True (T) or False (F) against each.

(i) Mendel did a number of tests to ensure the validity of his results while formulating the law of segregation.

(ii) Isogamy occurs in several prokaryotes.

(iii) Sex-limited traits are traits that are expressed in all sexes.

(iv) In the female birds, normally one gonad develops and the other is suppressed.


For PDF and Handwritten

WhatsApp 8130208920





Note: Only a member of this blog may post a comment.