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प्रश्न
In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are ______.
पर्याय
males and females, respectively
females and males, respectively
all males
all females
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उत्तर
In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are males and females, respectively.
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संबंधित प्रश्न
Define the term ‘genome’.
Distinguish between X andY chromosomes. (Mention any 'two' points.)
Describe the structure of chromosomes with a suitable diagram.
Define the Homologous chromosomes
An allohexaploidy contains
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
Mention the name of man-made cereal. How it is formed?
Match the column I (Type of chromosome) with column II (name of chromosome).
| Type of chromosome | Name of chromosome | ||
| i. |  |
P. | Acrocentric |
| ii. |  |
Q. | Telocentric |
| iii. |  |
R. | Metacentric |
| iv. |  |
S. | Sub-metacentric |
Telocentric chromosome differs from acrocentric chromosome in that ____________.
Which of the following is a primary constriction?
During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.
At secondary constriction I, ______ becomes organized during interphase.
Experimental verification of ‘chromosomal theory of inheritance’ was done 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.
What would be the genotype of the parents if the offspring have the phenotypes in 1:1 proportion?
A couple has two daughters. What is the probability that the third child will also be a female?
During mitosis, chromosomes distribution to the daughter cell is ______.
Experimental verification of the chromosomal theory of inheritance was done by ______.
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
