Answer A:
1. Spiral chloroplast:
This organelle help in photosynthesis, because it contain green pigment called chlorophyll in which water and carbon dioxide combine in the presences of sun light to prepare glucose.
2. Cell wall:
It is chemically composed of<span> an outer layer of pectin and an inner layer of cellulose. It provide rigidity and shape to spirogyra cell.</span>
Answer B:
The other parts which are not labelled include mucilage, cytoplasm, pyrenoids, cytoplasmic strand.
Answer C:
Function of pyrenoid:
<span>Each chloroplast strand has several round bodies called 'pyrenoids', which are responsible for starch production.
</span>Function of mucilage:
Mucilage help in retaining water in cell.
Identify the type of energy used in each action.
The following are the correct answers :-
A. electrical energy - 2. a signal transduction process by a neuron
B. gravitational potential energy - 3. a ball at the top of a hill
C. mechanical energy - 1. the flexing of an arm muscle
Answer:
They're composed largely of blood plasma
Explanation:
Answer:
The correct option are a) Meiosis 1 in mother c)Meiosis 1 in father d) Meiosis 2 in father
Explanation:
If a normal haploid sperm fertilizes an egg that has undergone non-disjunction in meiosis 1 than offsprings produced might be having Aaa genotype.
If a normal haploid sperm fertilized an egg that had undergone non-disjunction in meiosis 2 then the chances of the offsprings being formed would be AAa
, aaa
, Aa
, aa
, a. Hence, option B is not correct.
