Answer:
23 pairs in meiosis 1 and 23 numbers in meiosis 2.
Explanation:
There are diploid number of chromosomes means double number of chromosomes at the end of meiosis 1 while on the other hand, at the end of meiosis 2, there are haploid number of chromosome means half number of chromosomes in each daughter cell. In humans meiosis 1, there are 23 pairs of chromosomes that is diploid in nature but in the end of meiosis 2, there are only 23 chromosomes in each daughter cell which is haploid in nature.
<span>Mangroves help in preventing soil erosion, act as a catalyst in reclaiming land from seas </span>
- Make sure taps and such have no leaks.
- Keep a bucket underneath taps and use the water saved in them for gardening.
- Avoid flushing the toilet when unnecessary ("If it's yellow let it mellow, if it's brown flush it down"). And avoid throwing tissues in the toilets, instead throw in a proper bin.
- Never put water down the drain when there may be another use for it such as cleaning or watering a plant or garden.
- Water lawns during the early morning hours when temperatures and wind speed are the lowest. This reduces loss from evaporation.
<span>- In the school yard, use mulch to retain moisture in the soil. Mulching also helps to control weeds that compete with plants for water.
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Hi
The term lack of genetic diversity for a particular population refers to the fact that there are less number of alleles and less range of phenotypes and traits like (height, skin, color, ability to cope disease, ability to change metabolism as per requirement etc).
If we talk about endangered species, they are the specie which are prone to be extinct in near future because their population is very less in number. There can be multiple reason of becoming endangered for a population such as over hunting etc.
So when we say that an endangered population is genetically less diverse, it means that there are further difficulties that hinder their recovery.
For example: If a calamity stucks, all organisms that are already low in number and also genetically less diverse, so they cannot cope with calamity and get extinct. However, if this population is genetically more diverse, some organisms may survive some may die, and those which survive can recover the population. That is why it becomes more difficult to recover an endangered specie if it is genetically less diverse. The more the genetic diversity, better it is for specie.
Hope it help!