<em>-Describe the structure and function of the nucleus.
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1. Supports and protects the cell
2. Controls the cell
3. Controls what enters and leaves the cell
4. Metabolic reactions occur
The nucleus structure consists of;
Nuclear envelop: double membrane structure separate cytoplasm from nucleus
Nuclear pores: present in membrane and function for transport and macro-molecules across nuclear envelope.
Chromatin: Important component, scattered DNA, during cell division it gets organised to chromosomes.
<em>-Describe the structure and function of the cytoplasm.
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Structure:
Gelatinous aqueous fluid that fills the cell.
Functions:
- Suspends the organelles within the cell
- Fills the cell and gives it shape
Found in:
Bacteria, Animal & Plant cells
Answer:c
Explanation: The law of segregation is given by the George Mandal.
<span>Phospholipids are the most abundant lipid in the plasma membrane. Phospholipids are amphipathic molecules, containing hydrophobic and hydrophilic regions. The fluid mosaic model states that a membrane is a fluid structure with a mosaic of various proteins embedded in it.</span>
Answer:
probability of having offspring with the aabb genotype: 1/16
Explanation:
The cross of heterozygous AaBb as parental phenotype led to formation of 16 phenotype of the offspring.This is because this is dihybrid form of inheritance .The probability of having aabb offspring is 1/16 since there is only one aabb type of offspring phenotype out of the 16.
Answer:
A
Explanation:
"Gravity is the force that pulls Earth and stops it from going off in some other direction.” Without the sun's gravitational pull, Earth would move in a straight line away from the sun. Gravity is also the force that keeps the moon revolving around Earth.