The best summary of the process of natural selection will be provided bythe option D that is genes are always passed from parent to offspring . Hence , out four inheritance is one of the option in the given question that is gene are passed from parent to offspring .
The second pair of ribs or the true ribs
Answer:
Genetic counseling
Explanation:
If an individual suspected an inherited disorder(usually dangerous) in the parents, or partner's family and wish to <u>find out or investigate the pattern of inheritance,</u> or t<u>he likelihood of manifesting this conditions later in life</u>,<u> or the chances of the partner passing this down to their offspring</u>, then the expert to visit is a genetic Counsellor, while the term to describe the genetic enquires is called genetic counseling. The Counsellor also provides the necessary emotional support that the investigator may need after the discovery.
<u>Besides the above reason, Genetic counseling is also important for</u>
1.How and when to plan a baby ,if the birth is suspetabe to a disorder
2.the type of genetic screening test to go for,
3. how to protect the child and the mother during pregnancy,incase a disorder is already present,
4. to understand family history and to secure the future of the marriage.
5. the necessary safety and curative measures to give the child after birth.
Genetic Counsellors are certified expert with additional master degree in Genetic counseling.
Answer
When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible network of dark fibers called the Chromatin.
Definition
Chromatin is a thread like structure that can be seen inside nucleus before cell division. It is a complex of DNA and histone proteins.
Forms of chromatin
Chromatin exist in two forms, that is
a. Euchromatin
It is less condensed and can be easily transcribed.
b. Heterochromatin
It is highly condensed and not transcribed as easy.
Organization of chromatin
Microscopy has shown the appearance of chromatin as beads on a string. The beads are called nucleosomes.
Nucleosome
Each nucleosome is composed of DNA wrapped around eight histone proteins. The nucleosome is then wrapped into a 30nm spiral called solenoid.
