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.
About 7, 917. 5 miles = 12, 742km.
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I say the correct answer would be: organism.
Growth factors are cell-surface receptor-binding proteins that encourage the growth and development of target cells.
<h3>What is Growth Factor ?</h3>
A growth factor is a naturally occurring chemical that promotes cell proliferation, wound healing, and, on rare occasions, cellular differentiation. It is usually a secreted protein or a steroid hormone. Growth factors play a crucial role in the regulation of many cellular processes.
- A growth factor is a protein that stimulates the growth of specific tissues. Growth factors are found in a wide variety of animals, including insects, amphibians, humans, and plants, and they serve a crucial role in encouraging cellular differentiation and cell division.
- Growth factors are commonly used as a signaling molecule between cells. Cytokines and hormones, for example, attach to specific receptors on the surface of their target cells. As a result, the correct answer is proteins that bind to surface receptors and excite target cells.
Growth factors are local regulators that - bind to cell-surface receptors and stimulate growth and development of target cells.
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