Advertisements
Advertisements
प्रश्न
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.
Advertisements
उत्तर १
Male honey bees are born from unfertilised eggs, whereas female honey bees are born from fertilised eggs. Because the unfertilised egg carries half the number of chromosomes as compared to the fertilised egg, male honey bees have half the number of chromosomes as compared to female honey bees.
उत्तर २
A male honeybee has 16 chromosomes because it is haploid, developing from unfertilized eggs by parthenogenesis. A female honeybee has 32 chromosomes because it is diploid, developing from fertilized eggs and thus having two sets of chromosomes. This is the haplodiploid mechanism of sex determination in honeybees.
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
Explain the types of chromosomes on the basis of position of centromere.
Classify the chromosomes on the basis of position of centromere.
Distinguish between X and Y chromosomes.
The A and B genes are 10 cm apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?
Genes G S L H are located on the same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is
If the haploid number in a cell is 18. The double monosomic and trisomic number will be
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.
At secondary constriction I, ______ becomes organized during interphase.
Chromosomal theory of inheritance was put forth by ______
A plant having the genotype AABbCC will produce ______ kinds of gametes.
Extranuclear inheritance occurs in ______.
Chromosomal theory of inheritance was given by ______.
What are minisatellites?
During mitosis, chromosomes distribution to the daughter cell is ______.
What do you mean by locus?
Which of the following phase follows S and G2 phases of interphase?
Which of the following is sex chromosomal disorder?
Consider the following information and answer the question that follows:
|
Make a single pedigree chart using the above information to show the pattern of inheritance of phenylketonuria (PKU) in the family of Reshma.
