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Which of the following is suitable for experiment on linkage?
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Which of the following is suitable for experiment on linkage?

A
aaBB aaBB

B
AABB

C

D
AAbb AaBB

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Updated on: Apr 4, 2023

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CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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aabb is suitable for experiment on linkage. Linkage is the tendency for certain genes to be inherited together, because they are on the same chromosome. Thus, parental combinations of characters are found more frequently in offspring than non-parental characters.
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Practice questions from CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

Question 1
Medium
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Direction Read the following and answer the questions from given below Mendel is known as the 'Father of Genetics' because of his ground breaking work on inheritance in pea plants 150 years ago. At the age of 21 Mendel while working in a monastery in Brunn (now in the Czech Republic) began a series of experiments in their botanical garden. He found out how traits are passed from one generation to another, i.e. inheritance. He studied this in peas (Pisum sativum), because they are easy to grow and can be shown each year. (i) During the experiments, Mendel called genes by the term (a) traits (b)characters (c) factors (d)qualities (ii) Under which topic, Mendel's work was published in 'Natural History Society of Brunn'? (a) Mendel's Laws of Inheritance (b) Experiments in Plant Hybridisation (c) Experiment on Heredity and Variation (d) Origin of Species (iii) Mendel was lucky to work on pea plants for his experiment because (a) pea flowers are normally self-pollinated, but can be readily cross-pollinated (b) there are several varieties in peas with observable alternative form of a trait (c) the selected seven characters in the experiment are located on the same chromosome (d) the selected seven characters were located on different chromosomes (iv) Which is correct about traits chosen by Mendel for his experiments on pea plant? (a) Terminal pod was dominant (b) Constricted pod was dominant (c) Green coloured pod was dominant (d) Tall plants were recessive (v) Assertion (A) At -generation in monohybrid cross, both parental traits are expressed in the proportion of Reason The contrasting parental traits show blending at -generation. (a) Both A and R are true and R is the correct explanation of (b) Both A and R are true, but R is not the correct explanation of (c) is true, but is false (d) A is false, but R is true
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View solution

Question 2
Medium
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Views: 5,288

Direction Read the following and answer the questions from given below Many human diseases have genetic component. Some of these conditions are under investigation by researchers or associated with National Human Genome Research Institute (NHGRI). A genetic disorder is a disease caused in whole or in part by change in the DNA sequence away from the normal sequence. Genetic disorders can be caused by a mutations in one gene (monogenic disorder), by mutation in multiple genes (multifactorial inheritance disorder) or by a combination of gene mutations and environmental factors or by damage to chromosomes (changes in the number or structure of entire chromosomes, the structure that carry genes). (i) A hereditary disease which is never passed on from father to son is (a) autosomal linked disease (b) X-chromosomal linked disease (c) Y-chromosomal linked disease (d) None of the above (ii) Mendelian disorder may be of (a) recessive (b) dominant (c) Both (a) and (b) (d) cannot be determined (iii) Non-disjunction in meiosis results in (a) trisomy (b) normal diploid (c) gene mutation (d) None of these (iv) Failure of segregation of chromatid during cell division cycle, results in the gain or loss of chromosome which is called (a) aneuploidy (b) hypopolyploidy (c) hyperpolyploidy (d) polyploidy (v) Monosomy and trisomy are represented respectively as (a) (b) (c) (d)
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View solution

Question 3
Medium
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Views: 5,339

A pleiotropic gene
  1. controls a trait only in combination with another gene
  2. controls multiple traits in an individual
  3. is expressed only in primitive plants
  4. is a gene evolved during Pliocene
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View 2 solutions

Question 4
Medium
Views

Views: 6,094

Assertion (A) A pair of contrasting characters is termed as allele. Reason (R) Two alleles of a gene express equally in an individual.
  1. Both and are true and is the correct explanation of
  2. Both and are true, but is not the correct explanation of
  3. A is lrue, bul is ralse
  4. A is false, but R is true
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View 2 solutions

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Practice more questions from Principles of Inheritance and Variation

Question 1
Medium
Views

Views: 5,503

Which of the following statements is not correct regarding the selection of Drosophila melanogaster by T.H. Morgan in his experiment?
  1. A single mating procuces very large number of offspring
  2. It has life cycle of about two weeks
  3. It could be grown in simple synthetic medium
  4. Female and male Drosophilla are not distinguishable
Topic

Topic:

Principles of Inheritance and Variation

View solution

Question 2
Easy
Views

Views: 5,510

Pod character i.e. green colour in pea is
  1. Dominant
  2. Incompletely dominant
  3. Recessive character
  4. Abnormal character
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

Biology-for-NEET-Volume-2-Class-XII

View solution

Question 3
Easy
Views

Views: 5,496

The genotype of offspring formed from Tt x tt will be ________.
  1. TT and tt
  2. Tt and tt
  3. Only tt
  4. Only TT
Topic

Topic:

Principles of Inheritance and Variation

View solution

Question 4
Easy
Views

Views: 5,908

Genotype is
  1. genetic constitution of an organism
  2. genetic constitution of somatic cells
  3. genetic constitution of plastids
  4. genetic constitution of germ cells
Topic

Topic:

Principles of Inheritance and Variation

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View 4 solutions

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Question 1
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Views: 5,273

 Glycoprotein - FSH, LM, TSM v) Steroidal Mormone
  1. O- Qetrogen
  2. M - Mineralcorticoids (Aldastiron)
  3. Tr - Cucacorticoid (Cartisal)
  4. T - Testosterone
  5. - Progesterone
Topic

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Question 2
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Suppose a geneticist is using a three-point test cross to map three linked rabbit morphology and behavioral mutations called br. It, and Le. The gene br is associated with the bristly fur phenotype, and lt is associated with the long-tailed phenotype. Both br and lt are recessive mutations with respect to wild type. Le is a dominant mutation that confers the lethargic phenotype The geneticist first crosses true-breeding lethargic rabbits to true-breeding bristly fur, long-tailed rabbits. Next, the geneticist backcrosses the Fi progeny to the bristly fur, long-tailed parents, and obtains the results reported in the table. Phenotype lethargic Number 791 bristly fur, long-tailed 785 long-tailed 201 191 8 bristly fur, lethargic bristly fur long-tailed, lethargic 8 bristly fur, long-tailed, lethargic 24 28 wild type Place the genes in the correct order in the chromosome. Answer Bank
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A 50-year-old male has just experienced a spinal cord injury after a tree fell on the cab of his truck. His wife is asking why he is on a ventilator if his spinal cord was injured. How would the nurse explain the effects of spinal cord injury on ventilation and communication and body system function. 2. Discuss pharmacologic and nonpharmacologic treatments for headache.
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Question 4
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What will be the base sequence of DNA against the base sequence AUCGCCUGA of RNA?

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Question Text
Which of the following is suitable for experiment on linkage?
Updated OnApr 4, 2023
TopicPrinciples of Inheritance and Variation
SubjectBiology
ClassClass 12
Answer TypeText solution:1 Video solution: 3
Upvotes341
Avg. Video Duration4 min