I
have black hair just like my father and blue eyes like my mother. The
shape of my nose also resembles the shape of my father’s nose yet I
am taller than both of them, I have less body fat index and more
hair!
<span>I
think the environmental factors are responsible from much of the
differences between me and my parents, after all I grew up, in a
sense, in a different world. The level of pollutants in the air, the
hormones in the food, ,better medical care and even the availability
of information regarding health care choices, they are all factors
that change from generation to generation and change they way we are
and a very real way. It is true that we are the product of our genes
but the environment plays a determinant role in our development as
well.</span>
In eukaryotes, DNA is found in chromosomes in the nucleus. Chromosomes are made of a single molecule of DNA and proteins. Chromosomes are linear, and DNA in them is double stranded. There are many chromosomes in a single nucleus. In prokaryotes, a single DNA molecule which is double stranded forms the chromosome. There are no proteins in the chromosome. In viruses, the genetic material is either DNA or RNA. They may be double stranded or single stranded. It may be circular or linear.
Answer:
meiosis I
Explanation:
Independent transmission is Mendel's second law. Like any Mendel law it is based or is about the transmission of alleles. Therefore, the law of independent transmission is based on the fact that when forming gametes, the alleles of one gene are segregated independently before the segregation of the alleles of another gene. This second law can not only be applied to the characters that Mendel analyzed, which were two genes with two possible alleles, this law is fulfilled with more than two characters. We must bear in mind that alleles are the different forms that a gene can present.
On the other hand we have the concept of meiosis I which is a type of cell division that in animals generally gives rise to gametes for sexual reproduction or sexual spores (in plants and fungi). That is to say in mitosis we find that there is only a cell division between homologous chromosomes, so that from a tetraploid number (4n) we pass to a diploid number (2n). While in meiosis we find that there are two cell divisions in which we go from a tetraploid number (4n) to a haploid number (n). This means that this is a reductive process. These haploid cells will join together to give rise to a diploid cell. Another important concept to consider in meiosis is the formation of chiasmas that are created between non-sister chromatids, thanks to this phenomenon the exchange of genetic material occurs.
Answer:
Mitochondria
Explanation: This is the powerhouse of the cell. It is important in making ATP not the transportation of materials inside a cell.
