Flaws in developmen of human, Biology

Assignment Help:

Flaws in Developmen of Human

The human growth and development in spite of its complexity works perfectly most of the time. But while development goes awry it creates a giant or dwarf, a child along with multiple fingers or toes an albino or haemophilic or even worse than these. All birth defects are loosely grouped like 'congenital defects'. Causes for birth defects can be sought in three general areas; defective genes, abnormal arrangements of chromosomes and not favorable factors occurring in the uterine environment throughout pregnancy. The list of hereditary birth defects is long and in some cases the particular chemical defects because of defective genes is known, for instance, Haemophilia, sickle cell, thalassemia, anaemia and phenylketonuria. But not all genetic defects are inherited. In a number of embryos the genetic instructions that govern growth are primarily correct but somewhere during cell divisions the instructions become garbled and mishaps of this son generally involve not a single defective gene but a complete rearrangement, of the cell's genetic material. Down's syndrome is one such example.


Related Discussions:- Flaws in developmen of human

Excretory system of animals and human urinary system, steps in urine format...

steps in urine formation and the organs/tissues involve in such process?

Polymorphism in lysosomes, Polymorphism in Lysosomes Polymorphism, i.e. e...

Polymorphism in Lysosomes Polymorphism, i.e. existence of a structure in more than one form, is an important feature of lysosomes. Several different forms of lysosomes have been

Emboly - mechanism of gastrulation, EMBO L Y - The embolic morphogene...

EMBO L Y - The embolic morphogenetic movements are concerned with the inward migration of prospective endodermal and mesodermal blastomeres from the external surface of blast

Explain the scanning electron microscope, Explain the Scanning Electron Mic...

Explain the Scanning Electron Microscope It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface

Write out electronic configuration, Give number of valence electrons for te...

Give number of valence electrons for technetium. Write out electronic configuration for the valence electrons. Give the number of valence electrons and the number of electronic con

Describe induced ventricular arrhythmias, Q. Describe Induced Ventricular A...

Q. Describe Induced Ventricular Arrhythmias? The prognostic significance of ventricular ectopy provoked by stress testing after an MI is controversial. Complex ventricular arrh

What dna and rna are polymers composed are called, DNA and RNA are polymers...

DNA and RNA are polymers composed of repeated units called?

Explain nutritional and functional role of aluminium, Minerals :- Aluminium...

Minerals :- Aluminium                Food Source       Low and variable in foods, component of some antacids and leavening agents Nutritional Functional role Possib

Inhibition of microorganisms in food, Q. Inhibition of microorganisms in fo...

Q. Inhibition of microorganisms in food? Microorganisms use our food supply as a source of nutrients and energy. They increase their numbers by utilizing nutrients. This can re

Express the three functional classifications of joints, In general compare ...

In general compare and contrast the three functional classifications of joints according to movement.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd