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प्रश्न
What is haplodiploidy?
उत्तर
In haplodiploidy, the sex of the offspring is determined by the number of sets of chromosomes it receives. Fertilized eggs develop into females (Queen or Worker) and unfertilized eggs develop into males (drones) by parthenogenesis. It means that the males have half the number of chromosomes (haploid) and the females have double the number (diploid).
संबंधित प्रश्न
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
What are the chromosomes XY and XX known as?
Fill in the following blank with suitable word :
The...............chromosomes for a ............are XX whereas that for a ..............are XY.
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human (i) sperm cell, and (ii) zygote?
In a human, how many chromosmes are present in a brain cell?
In a human, how many chromosmes are present in a fertilised egg?
Does genetic combination of mother play a significant role in determining the sex of a new born baby?
The human animal which has an XY pair of chromosomes is called :
(a) male
(b) hybrid
(c) female
(d) doomed
E is the gene for brown eye colour and an is the gene for blue eye colour. which gene is (1) recessive, and (2) dominant?
Which combination of genes in the zygote will produce children with blue eyes?
What is parthenogenesis?
How drones are produced in honey bees?
Explain the mechanism of sex determination in birds.
Kavitha gave birth to a female baby. Her family members say that she can give birth to only female babies because of her family history. Is the statement given by her family members true? Justify your answer.
Number of autosomes present in liver cells of a human female is ______.
A trait in an organism is influenced by
A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.
Which of the following group shows ZW-ZZ type of sex determination?
