During prophase I, all four chromatids of the two homologues become closely associated as a result of pairing, forming a structure known as a tetrad or bivalent.
<h3>What is a tetrad?</h3>
A tetrad is a structure formed during the prophase I stage of meiosis I whereby two homologous chromosomes pair together.
Meiosis occurs in two stages of division namely;
- meiosis I
- meiosis II
In meiosis I, homologous chromosomes are separated but are first paired during the prophase stage to form the tetrad or bivalent structure.
Therefore, during prophase I, all four chromatids of the two homologues become closely associated as a result of pairing, forming a structure known as a tetrad or bivalent.
Learn more about tetrad at: brainly.com/question/12793757
Answer:
Symptoms:
- Fever
- Headache
- Hydrophobia
- Photophobia
- Agitation
- Increased salivation
- The animal becomes hyperreactive to external stimuli and bite at anything near
- Incoordination is seen due to rear limb paralysis and drooling and difficulty swallowing is caused by paralysis of facial and throat muscles.
It's a deadly disease. Death is usually caused by respiratory arrest.
Prevention can be done through:
- Vaccinating dogs, cats, and ferrets against rabies
- Keeping pets under supervision
- Contacting an animal control officer if the animal is acting strangely
I know that one of them is respiratory system.....
Multipotent cell
is a kind of atem cell that can only develop into cells that are closely related to the original stem cell.
<u>Explanation:</u>
Our body contains stem cells which help to regenerate or repair a particular cell or tissue during the time of need. There are different types of stem cells which provide as a life saver to the individuals to recreate the tampered organ or tissue.
The multipotent cells unlike other stem cells have specific functions only. They can develop into cells that are closely related to the original stem cell. On stimuli a multipotent blood stem cell can give rice to related cells but cannot produce a neuron or other kind of cells. Hence multipotent cells are mainly used in transplantation.
I think Itz map or graph I’m not to sure