Please select a subject first
Advertisements
Advertisements
What is a monohybrid cross? How did Mendel perform this cross?
Concept: undefined >> undefined
A certain couple got four daughters in a sequence and no son. Does it mean that the husband does not produce Y-chromosome bearing sperms? Explain. What is the chance of this couple having a daughter?
Concept: undefined >> undefined
Advertisements
Differentiate Between Monohybrid and Dihybrid cross.
Concept: undefined >> undefined
Assertion (A): Sympathetic nervous system prepares the body for violent action against abnormal conditions.
Reason (R): Sympathetic nervous system accelerates heartbeat.
Which of the following is correct?
Concept: undefined >> undefined
Name the following:
A defect in our eyes in which some parts of the object are in focus while the other parts are blurred.
Concept: undefined >> undefined
Given below is a schematic representation of the inheritance of the shape of the seeds of garden peas. Answer the questions that follow:
- Which is the dominant and recessive allele of the trait?
- What does the ratio 3 : 1 in the F2 generation represent?
- State Mendel's Law of Dominance.
Concept: undefined >> undefined
Name the following:
A plastid without pigment.
Concept: undefined >> undefined
Name the following:
The orange-red pigment found in the chromoplast.
Concept: undefined >> undefined
The basis of genetic variation in the living organisms during mitosis occurs due to ______.
Concept: undefined >> undefined
Write the full form of CFCs.
Concept: undefined >> undefined
Name the following:
The process by which intact plants lose water in the form of droplets from leaf margins.
Concept: undefined >> undefined
Name the following:
The tissue concerned with upward conduction of water in plants.
Concept: undefined >> undefined
Name the following:
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
Concept: undefined >> undefined
Concept: undefined >> undefined
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Guttation is another name for bleeding in plants.
Concept: undefined >> undefined
Give two examples of cell inclusions.
Concept: undefined >> undefined
Root pressure can be measured by using ______.
Concept: undefined >> undefined
Name the eye defects caused due to each of the following:
| Cause | Eye defect | |
| (a) | Lens turns opaque | ______ |
| (b) | Uneven curvature of the cornea | ______ |
| (c) | Deficiency of vitamin A | ______ |
| (d) | Lens loses its flexibility | ______ |
| (e) | Eye ball lengthens from front to back | ______ |
| (f) | Lens becomes too flat | ______ |
Concept: undefined >> undefined
Differentiate between members of the following pair with reference to what is asked in the bracket.
Night blindness and colour blindness (sensory cells which cannot function properly).
Concept: undefined >> undefined
find odd one from following: Sewage, newspaper, Styrofoam, Hay.
Concept: undefined >> undefined
