D because they are complete systems
The Nucleus of a neuron is an oval shaped membrane-bound structure found in the soma or body of the neuron. It contains the nucleolus and chromosomes, necessary for the coded production of proteins within the cell. The nucleolus of the nucleus produces ribosomes. The genetic information of an organism is coded within the long strands of deoxyribonucleic acid (DNA) from which the chromosomes are made. DNA is composed of two long chains that are interconnected in a helical arrangement. The sub units of a chromosome (genes) when activated induce the production of messenger ribonucleic acid (mRNA). mRNA is a duplicate of the information contained in the gene. mRNA leaves the nucleus and attaches to a ribosome, where is serves as a template for the production of a protein molecule
Parts of a neuron
Neurons vary in size, shape, and structure depending on their role and location. However, nearly all neurons have three essential parts: a cell body, an axon, and dendrites.
1. Cell body
2. Axon
3. Dendrites
Myelinated neurons are typically found in the peripheral nerves (sensory and motor neurons), while non-myelinated neurons are found in the brain and spinal cord. Dendrites or nerve endings.
The answers are 1. Amphitheaters and 2. Doric, Ionic and
Corinthian combinations of columns. Amphitheaters are open air venues, which
are used for entertainment, different and various performances and also sports
events. The term amphitheater comes from a Greek word which means “a place for
viewing”. Column designs are separated into three categories, the first is
Doric, which is the most common and then second comes the Ionic and last but
not the least, the most favored and extravagant type of column, the Corinthian
Column. The Roman Colosseum is made up of two open-aired venues or also known as
amphitheaters and a lot of different and diverse columns.
DNA, RNA, protein digesting enzymes did Avery, MacLeod, and McCarty use in order to identify the genetic material.
<h3>What is the Digesting enzyme of DNA?</h3>
- With the aid of specialized enzymes known as restriction endonucleases (often referred to as restriction enzymes or REs), restriction digestion is the process of breaking down DNA molecules into smaller fragments.
- Wherever that sequence appears in the DNA molecule, these specialized enzymes can identify specific DNA sequences (for instance, GATATC).
- The DNA and RE are first combined in restriction digests, but things don't work out quite that easily.
- Because they are fragile, restriction enzymes must be handled with care.
- Since proteins which are what enzymes are denatured when the temperature rises, REs are always kept in the freezer until they are needed.
- In actuality, the components of a Restriction Digest are all kept chilled until the reaction is ready to start.
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The twenty- first pair of chromosomes failed to seperate during meiosis, so aziz received three of these chromosomes rather than the normal two. Aziz has down syndrome.
