Question
Explain the laws that Mendel derived from his monohybrid crosses.
✓
Answer
Law of dominance and law of segregation are the two laws, Mendel derived from his monohybrid crosses.
- Law of dominance explains that in a dissimilar pair of factors of a trait, one of them expresses itself (dominant) and the other remains hidden (recessive).
- It also explains the expression of both the traits in the F, progeny, in a ratio of 3 : 1.
- Law of segregation states that the members of an allelic pair that remained together in the parent/ hybrid, segregate during gamete formation and enter different gametes.
- A homozygous parent produces all gametes that are similar while the heterozygous one produces two kinds of gametes, each having one allele for a trait.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Haemophilia is a sex-linked recessive disorder of humans. The pedigree chart given below shows the inheritance of haemophilia in one family. Study the pattern of inheritance and answer the questions given.
- Give all the possible genotypes of the members 4; 5 and 6 in the pedigree chart.
- A blood test shows that the individual 14 is a carrier of haemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilia male?
Gene therapy is an attempt to correct a genetic defect by providing a normal gene into the individual. By this the normal function can be restored. An alternate method would be to provide the gene product (protein/ enzyme) known as enzyme replacement therapy, which would also restore the function. Which in your opinion is a better option? Give reason for your answer.
- What is an ‘allergic reaction’?
- Name any two drugs used to quickly reduce the symptoms of allergy.
- Why do more and more children in metro cities of India suffer from allergies and asthma?
How do scientists extrapolate the total number of species on Earth?
- Mature seeds of legumes are non-albuminous.Then, can it be considered that double fertilization does not occur in legumes? Explain your answer.
- Write one similarity and one difference between autogamy and geitonogamy.
Mention the prevention and control efforts by the population to prevent and control several infectious diseases? How can prevention and control of infectious diseases be done?
A couple where both husband and wife are producing functional gametes, but the wife is still unable to conceive, is seeking medical aid. Describe any one method that you can suggest to this couple to become happy parents.
Do you support dope test being conducted on sports persons participating in a prestigious athletic meet? Give three reasons in support of your answer.
What is urethral meatus?
Name the hormone that maintains the functions of male accessory ducts and glands.