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प्रश्न
If the haploid number in a cell is 18. The double monosomic and trisomic number will be
पर्याय
35 and 37
34 and 35
37 and 35
17 and 19
उत्तर
34 and 35
संबंधित प्रश्न
If the number of chromosomes in an endosperm cell is 27, what will be the chromosome number in the definitive nucleus?
- 9
- 18
- 27
- 36
Define the term ‘genome’.
How many chromosomes do drones of honey bees possess?
Name the type of cell division involved in the production of sperms by honey bees.
Classify the chromosomes on the basis of position of centromere.
Describe the structure of sex-chromosomes.
Answer the following question.
Compare in any three ways the chromosomal theory of inheritance as proposed by Sutton and Bovery with that of experimental results on pea plant presented by Mendel.
Short Answer Question.
Explain the chromosomal theory of inheritance.
Changing the codon AGC to AGA represents
If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.
What is the possible genotype in the F2 generation?
From the following identify the INCORRECT statement/s with respect to the chromosomes.
i. Chromosomes are capable of self replication and play vital role in heredity, mutation, variation, and evolutionary development of eukaryotic species.
ii. Chromosomes are visible during cell division.
iii. Chemically eukaryotic chromosomes are made of mRNA, histone and non-histone proteins.
iv. The number of chromosomes varies within the population of a particular species.
Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.
At secondary constriction I, ______ becomes organized during interphase.
Which three scientists independently rediscovered Mendel’s work?
Chromosomal theory of inheritance was given by ______.
Chromosome maps/genetic maps were first prepared by ______.
Which of the following statements indicates parallelism in genes and chromosomes?
- They occur in pairs.
- They segregate during gamete formation.
- They show linkage.
- Independent pairs segregate independently.
How do genes and chromosomes share similarity from the point of view of genetical studies?
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
