In the answer for inheritance of X-linked genes, Madhav has shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.

In the answer for inheritance of X-linked genes, Madhav had shown carrier male. His answer was marked incorrect. Madhav was wondering why his marks were cut. Explain the reason.

Study the joint bar graphs and answer the question given below : In the joint bar graph below Govinda's first term and second term marks in some subjects are shown : In which subject were his marks more than 80 in the second term examination ?

Answer the following questions : My grandfather uses a bifocal lens in his spectacles . Explain why .

In a competitive examination, there were 60 questions. The correct answer would carry 2 marks, and for incorrect answer 1 mark would be deducted. Yashwant had attempted all the questions and he got total 90 maks. Then how many answers did he get wrong?

Question based on paragraph Students were taken to observe the crop cultivation in a potato farm in Maharashtra. The students observed that the yield of crops in Mr. Shyam's potato farm was more than that in his neighbour Bharat’s potato farm. Mr. Shyam was using a different variety of the crop, which he suggests has been disease-free ever since he planted the seeds. Based on the above passage, answer the given question Mention two techniques used for the production of such superior varieties of crops.

Answer the following : During a field visit an Andaman, Rahul observed that some volunteers were not allowing tourist to collect shells from the beaches. When he asked his teacher, she replied that it is an attempt to protect the ecosystem and explained the importance of seashells. What might have been her explanation?

Question based on paragraph Students were taken to observe the crop cultivation in a potato farm in Maharashtra. The students observed that the yield of crops in Mr. Shyam's potato farm was more than that in his neighbour Bharat’s potato farm. Mr. Shyam was using a different variety of the crop, which he suggests has been disease-free ever since he planted the seeds. Based on the above passage, answer the given question Are there any adverse effects of using such crops? Mention one.

The human male never passes on the gene for haemophilia to his son.' Explain. OR If a father and son are both defective in red green colour vision is it likely that the son inherited the trait from his father? Comment.

Question based on paragraph Students were taken to observe the crop cultivation in a potato farm in Maharashtra. The students observed that the yield of crops in Mr. Shyam's potato farm was more than that in his neighbour Bharat’s potato farm. Mr. Shyam was using a different variety of the crop, which he suggests has been disease-free ever since he planted the seeds. Based on the above passage, answer the given question What type of crop do you think Mr. Shyam must be using?