Question and answer
5 advantages and disadvantages of complexity in higher organisms
The complexity of higher organisms, which arises in the course of embryonic development from the much simpler fertilized egg, does not emerge by spontaneous generation nor by miracle. Such complexity must somehow be preexistent in the egg. [ Since the structure of organisms is genetically transmitted, it is DNA itself, the support of genetic information, that encodes this complexity. Here we
propose a model of organization of the genome in DNA loops maintained by DNA crossings. In this model DNA sequences that do not encode proteins, which represent more than 98% of the human genome, are involved in the definition of DNA crossing points and can no longer be considered as junk, but instead play a fundamental part in the encoding of genetic information by modulating the transcriptional state of genome domains. ............ ]
Get an answer
Original conversation
User: 5 advantages and disadvantages of complexity in higher organisms

Weegy: The complexity of higher organisms, which arises in the course of embryonic development from the much simpler fertilized egg, does not emerge by spontaneous generation nor by miracle. Such complexity must somehow be preexistent in the egg. [ Since the structure of organisms is genetically transmitted, it is DNA itself, the support of genetic information, that encodes this complexity. Here we propose a model of organization of the genome in DNA loops maintained by DNA crossings. In this model DNA sequences that do not encode proteins, which represent more than 98% of the human genome, are involved in the definition of DNA crossing points and can no longer be considered as junk, but instead play a fundamental part in the encoding of genetic information by modulating the transcriptional state of genome domains. ............ ]
sujaysen|Points 2733|

User: in a tabular form 5 advantages and disadvantages of complexity in higher organisms

Weegy: The evolution of biological complexity is an important outcome of the process of evolution. [ [ Evolution has produced some remarkably complex organisms - although the actual level of complexity is very hard to define or measure accurately in biology, with properties such as gene content, the number of cell types or morphology all being used to assess an organism's complexity.[1][2] This observation that complex organisms can be produced from simpler ones has led to the common misperception of evolution being progressive and having a direction that leads towards what are viewed as "higher organisms".[3] Nowadays, this idea of "progression" in evolution is regarded as misleading, with natural selection having no intrinsic direction and organisms selected for either increased or decreased complexity in response to local environmental conditions.[4] Although there has been an increase in the maximum level of complexity over the history of life, there has always been a large majority of small and simple organisms and the most common level of complexity (the mode) appears to have remained relatively constant. Contents [hide] 1 Selection for simplicity and complexity 2 Types of trends in complexity 3 History 4 See also 5 References [edit]Selection for simplicity and complexity Organisms that reproduce more quickly and plentifully than their competitors have an evolutionary advantage. Consequently, organisms can evolve to become simpler and thus multiply faster and produce more offspring, as they require fewer resources to reproduce. A good example are parasites such as Plasmodium - the parasite responsible for malaria - and mycoplasma; these organisms often dispense with traits that are made unnecessary through parasitism on a host.[5] A lineage can also dispense with complexity when a particular complex trait merely provides no selective advantage in a particular environment. ] ]
Expert answered|uxiali|Points 718|



Question
Asked 10/13/2012 10:49:46 AM
0 Answers/Comments
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
18,802,588 questions answered
Popular Conversations
Race is a myth in the sense that one race is superior to another and ...
Weegy: True - Race is a myth in the sense that one race is superior to another and of there being pure races. User: ...
12/20/2014 6:09:11 PM| 2 Answers
Find the slope of the line that passes through the pair of points ...
Weegy: The slope of the line that passes through the pair of points (6.5, 10.5) and (9.5, 7) is b. 0.22 .
12/20/2014 8:46:08 PM| 2 Answers
Write an equation that represents the problem, then solve the ...
Weegy: 4*6=x
12/21/2014 10:22:19 AM| 2 Answers
Multiply. (-8.7)(-1.1) User: divide -5/-20
Weegy: The answer is 100
12/21/2014 10:42:03 AM| 2 Answers
definition of absurdity
12/20/2014 12:13:09 AM| 1 Answers
If your supervisor criticizes the way you handled a certain ...
Weegy: A. clarify how your way of handling it was best. User: You can perform your job well only if you A. ...
12/20/2014 12:00:56 AM| 1 Answers
Personal pronouns take different forms depending on whether they’re ...
Weegy: When we want to show that something belongs to somebody or something, we usually add 's to a singular noun and ...
12/20/2014 12:24:16 AM| 1 Answers
Weegy Stuff
S
L
P
L
Points 1156 [Total 5000]| Ratings 0| Comments 1156| Invitations 0|Offline
S
L
Points 750 [Total 1441]| Ratings 1| Comments 740| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
Points 695 [Total 14880]| Ratings 1| Comments 685| Invitations 0|Offline
S
Points 681 [Total 681]| Ratings 1| Comments 671| Invitations 0|Offline
S
P
C
L
P
L
1
Points 128 [Total 6447]| Ratings 1| Comments 118| Invitations 0|Online
S
L
Points 83 [Total 1543]| Ratings 1| Comments 73| Invitations 0|Offline
S
1
L
L
Points 33 [Total 6700]| Ratings 0| Comments 33| Invitations 0|Offline
S
Points 30 [Total 30]| Ratings 0| Comments 0| Invitations 3|Offline
S
Points 23 [Total 29]| Ratings 0| Comments 23| Invitations 0|Offline
S
Points 22 [Total 22]| Ratings 0| Comments 2| Invitations 2|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.