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Question
Complete the following sentence with appropriate word:
______are the alternative forms of a gene producing different effects.
Solution
Alleles are the alternative forms of a gene producing different effects.
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RELATED QUESTIONS
Answer the following questions related to sex determination in human beings:
i. What is sex chromosome?
ii. How many pairs of chromosomes are present in human beings?
iii. How is the sex of the human offspring determined?
iv. Draw a diagram depicting sex determination in man.
"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.
Fill in the following blank with suitable word :
Genes always work in ................ .
In a human, how many chromosmes are present in a brain cell?
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.
Who is colour blind in the parents – the Father or the Mother?
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
Choose the correct answer :
Human sex chromosomes are __________
How many ovum are formed when a diploid cell undergoes meiosis, during oogenesis?
Which pair of sex chromosome will determine a male?
