What background information did Watson and Crick have made available for developing a model of DNA? What was their contribution?

Describe the Watson & crick model of DNA.

Name the following Model of DNA proposed by Watson and Crick.

Write a note on the salient features of the Watson and Crick model of the DNA.

What would happen if plants did not have accessory pigments?

Complete the paragraph Fill in the blanks by selecting the correct word from the bracket and complete the given paragraph. (adenine, phosphoric acid, centromeres, cytosine, nucleotides, ribonucleic acid, guanine, thymine) In 1953, Watson and Crick produced a model of the DNA molecule. As per this model, each strand in the molecule of DNA is made up of many small molecules known as _________. There are four types of nitrogenous bases adenine, guanine, cytosine and thymine_________and __________are called as ‘purines’ while _________and_________ are called ‘pyrimidines’. In the structure of the nucleotide, a molecule of a nitrogenous base and _________are each joined to a molecule of sugar.

What would have happened of cockroach did not had gizzard?

Read the following extract and answer the questions that follow: A liberal view behind the concept of organ and body donation is that after death our body should be useful to other needful persons so that their miserable life would become comfortable. Awareness about these concepts is increasing in our country and people are voluntarily donating their bodies. Life of many can be saved by organ and body donation. Blinds can regain their vision. Life of many people can be rendered comfortable by donation of organs like liver, kidneys, heart, heart valves, skin, etc. Similarly, · body can be made available for research in medical studies. Many government and social organizations are working towards increasing the awareness about body donation. What is the liberal view behind the organ and body donation?

Read the following extract and answer the questions that follow : A liberal view behind the concept of organ and body donation is that after death our body should be useful to other needful Persons so that their miserable life would become comfortable. Awareness about these concepts is increasing in our country and people are voluntarily donating their bodies. Life of many people can be saved by organ and body donation. Blinds can regain their vision. Life of many people can be rendered comfortable by donation of organs like liver, kidneys, heart, heart valves, skin, etc. Similarly, body can be made available for research in medical studies. Many government and social organizations are working towards increasing the awareness about body donation. What is the liberal view behind the organ and body donation?

What would have happened if C_4 plants did not have Kranz anatomy?