Answer:
47
Explanation:
We all know that gametes like egg cell and sperm have haploid set of chromosomes but here as per this question she has produced 2 copies of chromosome 21. For the sake of maintaining haploidy, she was supposed to have only a single copy of chromosome 21 as a result of which her egg cell was supposed to have 23 chromosomes not 24.
But, this is a case of non dis-junction. Also, in a normal sperm there are no such copies of any chromosome i.e. there is a haploid set of chromosomes. It means that sperm must be having only 23 chromosomes. So we can easily infer that when the egg cell and sperm will fuse, the zygote will have 47 chromosomes (24 from egg cell and 23 from sperm).
The thermosphere keeps the earth from getting to hot frame the sun and it's the last layer so
the thermosphere
My answer may not be precise, but I believe if you changed your question to "The presence of these structures indicates that the student is looking at a cell of what organism", then I would safely say a plant, because plants, unlike animals, have cell walls in addition to cell membranes. :) Hope this helps!
The improvement of nutritional quality, economic resources, the production of crops, and the marketing of crops.
The improvement of nutritional quality will help make better crops so that they turn out beautiful.
Economic resources helps make the crops so that you have a ton of crops.
The production of crops will help with more sustainable farming.
The marketing of crops will help you with getting money and to afford for making more crops next year.
Answer:
True
Explanation:
Gram negative bacteria produce virulent factors at host pathogen interface via membrane vessicle trafficking as bacteria outer member vesicle for nutrition, invasion and other cell communication.
