Answer:
20
Explanation:
Haploid cells contain a single copy of each chromosome. Diploid cells contain two copies of each chromosome. So if a haploid cell in an organism contains 10 chromosomes - the diploid cell will contain 20 chromosomes.
In humans, nearly all of our cells are diploid, and contain 46 chromosomes. Our haploid cells - the gametes (egg and sperm cells) - contain 23 chromosomes (one copy of each chromosome). When these fuse during sexual reproduction to form a zygote - the diploid state is restored and the zygote has 46 chromosomes.
Answer:
Gynoecium
Explanation:
The male organ of a flower is called stamen. It helps in making male gametes of the plant and is present in pollen grains. The female organ of a flower is called carpel. It helps in making female gametes or egg cells of the plant and is present in ovules.
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Answer:
Because a stationary front marks the boundary between two air masses, there are often differences in air temperature and wind on opposite sides of it. The weather is often cloudy along a stationary front, and rain or snow often falls, especially if the front is in an area of low atmospheric pressure.
