Explanation:
Meiosis I
At the beginning of meiosis I, a human cell contains 46 chromosomes, or 92 chromatids (the same number as during mitosis). Meiosis I proceeds through the following phases:
■ Prophase I: Prophase I is similar in some ways to prophase in mitosis.
<em>Answer:</em>
<em>A group of cells working together is defined as a tissue and several tissues working together comprise an organ. ... The heart is used as an example of an organ which is made up from muscle and valve tissue.</em>
<em>Explanation:</em>
Answer:
The substance is called agar. it's a jelly like substance that sets hard.
Mendel wants to control the pollination of his pea plants because traits were not blended but they remain separate in the subsequent generations and also it is contrary to scientific opinion during his time
<u>Explanation:</u>
- Mainly, he wants to control because they were against the scientific opinion during his time.
- Mendel takes a pea plant for his experiment because it can be easily observable.
- Pea plant has seven traits and it can be pollinated by both the ways. One is self-pollination and the other is cross-pollination.
- Mendel did not know about the genes but he speculates the factors of formation in the traits.
- Mendel produces three laws, the law of dominance, the law of segregation, the law of independent assortment.