The statement that is pat of the cell theory is D) Cells come from pre-existing cells.
Answer:
Growths exist as single cells or as fanning systems of multicellular fibers. How does the structure of the fibers identify with their capacity? ... Their long, fanning structure assists organisms with finding an area to create posterity
Explanation:
What is the connection between DDT and pyrethroids? They are both pesticides, but different ones. However, many mutations that protect the bugs from one of them also work on the other.
So, if they had been exposed, they'd be selected for resistence to these pesticides. But if they have not been exposed; they would be dying more often during the last decade.
Answer:
Mendel's Laws are a set of basic rules on the inheritance of characteristics from parent organisms to their children. They are considered rules rather than laws, since they are not fulfilled in all cases. Mendel's first Law of equitable segregation establishes that during the formation of the gametes each allele of a pair is separated from the other member to determine the genetic constitution of the filial gamete, the two alleles, which code for each characteristic, are segregated during the production of gametes through meiotic cell division. This means that each gamete will contain only one allele for each gene. This allows the maternal and paternal alleles to combine in the offspring, ensuring genetic variation. For each characteristic, an organism inherits two alleles, one for each relative. This means that in somatic cells, one allele comes from the mother and one from the father.
Explanation:
Mendel's laws reflect chromosomal behavior during meiosis: the first law responds to the random migration of homologous chromosomes to opposite poles during anaphase I of meiosis (both alleles and homologous chromosomes segregate equally or 1: 1 in gametes) and the second law, to the random alignment of each pair of homologous chromosomes during metaphase I of meiosis (whereby different genes and different pairs of homologous chromosomes segregate independently).Even though not all genes are inherited in the proportions described by Mendel, they are undoubtedly all inherited in the same way, that is, the alleles or different alternatives of a gene are separated in meiosis and each gamete will carry only 1 of them (2nd Mendel's Law) and in turn all genes on different pairs of chromosomes are transmitted independently. This allows the maternal and paternal alleles to combine in the offspring, ensuring genetic variation.Therefore, of each possible genotype for a two three or more genotypes it is possible to know how many gametes it will form, in what proportions and therefore predict results of crosses.
Answer:
Option (c) is the correct answer.
Explanation:
It is known that if we have to convert temperature from kelvin to degree celsius then we have to subtract 273 from the given value of temperature.
Whereas when we have to convert temperature from degree celsius to kelvin then we have to add 273 in the given value of temperature.
Therefore, convert value of 200 Kelvin in the Celsius scale of temperature as follows.
Temperature = (200 - 273) degree celsius
= - 73 degree celsius
Thus, we can conclude that value of 200 Kelvin in the Celsius scale of temperature is - 73^{o}C.
