Crossing over
The exchange of segments between non-sister chromatids of homologous chromosomes during meiosis is called crossing over. Linked genes can be separated by crossing over. Two genes with closer gene loci…
The exchange of segments between non-sister chromatids of homologous chromosomes during meiosis is called crossing over. Linked genes can be separated by crossing over. Two genes with closer gene loci…
The genes located on the same chromosome are called linked genes. The phenomenon of staying together of all the genes of a chromosome is called linkage. Every organism possesses numerous…
Multiple Choice Questions (MCQs) Amount of protein in cell membrane is: (a) 10% (b) 30% (c) 60% (d) 20% Amount of lipids in cell membrane is: (a) 10% (b) 30% …
Describe different structures of plasma membrane. Describe fluid mosaic membrane. Describe different movements across plasma membrane. Describe physio-chemical nature of cytoplasm. SHORT QUESTIONS Give chemical composition of plasma membrane.…
TERMS DEFINITIONS Homeostasis The maintenance of a constant internal environment despite fluctuations in the external environment is called homoeo stasis. Diffusion The movement of molecules from the area of higher…
The living content of the protoplasm between plasma membrane and nucleus is called cytoplasm. Living content of eukaryotes is divided in to nucleus and cytoplasm. These living contents (nticlebs and…
The plasma membrane surrounds the cell. Chemically plasma membrane is composed of: (a) Protein: 60 to 80% (b) Phospholipids: 20 to 40% (e) Cholesterol in small amount (d) Carbohydiutes in…
Multiple Choice Questions (MCQs) Polyhydroxy aldehyde and ketones are: (a) Protein (b) Carbohydrate(c) DNA (d) Glycoprotein The sugar present in milk is: (a) Glucose (h) Lactose (c) Maltose ( d…
SUBJECTIVE QUESTION 1. What are carbohydrates? Give their importance and source. Write note on monosaccharides. Write note on disaccharitles and polysaccharides. Write note on fats. What are lipids? Give…
TERMS DEFINITIONS Carbohydrates Carbohydrates are polyhydroxy aldehydes or ketones. Disaccharides The sugars composed of mo monosaecharidesare called disaccharides.These sugars are linked bn glxcosidic linkage Sucrose It is a disaccharide formed …