Answer:
By forming chromatin and in the condensed form of chromosomes
Explanation:
The human genome contains around 3 billion base pairs which are located in the nucleus of all cells. In order to accomodate such large genomic information, DNA is maximally supercoiled during mitosis and meiosis processes to form condensed structures called chromosomes. Humans have 23 pairs of chromosomes per somatic cell. The supercoiling process is assisted by a family of proteins called histones, which interact with DNA and regulate its conformation. The complex between DNA and histones within the nucleus is called chromatin. When chromatin is supercoiled it form chromosomes (in eukaryotic cells).
Answer:
Repetition occurs when multiple sets of measurements are made during one scientific investigation. Replication occurs when a scientific investigation is reproduced by another person. Repetition is multiple trials, when replication is when you redo the entire experiment.Explanation:
Question:All known organisms use genetic information to produce protein molecules via the same genetic code. This finding strongly supports the hypothesis that __________.
a) the earliest macromolecules probably arose when lightning struck an oxygen-free atmosphere
b) all organisms are descended from one or a few common ancestors
c) the genetic code readily evolves by natural selection
d) there's only one possible way to encode information in a macromolecule
Answer:
b) all organisms are descended from one or a few common ancestors
Explanation:
Protein synthesis occurs when the nucleotide sequence of the mRNA is read in the form of genetic codes. A specific genetic code specifies the same amino acid in all living beings. For example, the code "UUU" codes for phenylalanine in all the living beings irrespective of their species. This suggests that all the life forms have originated from one or few common ancestors and the genetic code has been preserved during the course of evolution of various species.
Answer:
The most appropriate answer would be option C.
Nonrenewable resources are the natural resources which are present in a limited amount on the planet.
It is because the rate of their utilization is way too faster than the rate of their formation in nature.
Examples may include coal, gas, petroleum et ctera.
Gas stove utilizes the energy of liquified petroleum gas to heat or cook the food which is a nonrenewable resource.
The structure (shape and number) of an animal’s teeth vary according to what food they consume.
For example, molars- flat teeth at the back of the mouth are very different among different types of animals:
• Herbivores (eat plants) have strong and flat molars ,
• Carnivores (eat meat) have limited number of molars,
• Omnivores (eat combine food) have molars for grinding.
On the other hand canine teeth are small or sometimes don’t even exist in herbivores are very defined and sharp in carnivores.
