Explain about homo neanderthalensis, Biology

Assignment Help:

Homo neanderthalensis successfully lived in the cold, harsh ice-age conditions of Europe until becoming extinct approximately 30 000 years ago. Adaptations which enabled them to survive for up to 400 000 years included:

• short and stocky bodies
• large noses
• cave dwelling
• living in groups of 8 - 25 individuals, with females moving between different groups
• each group was territorial with territories covering about 50 km2
• hunting large herbivores
• surviving on a diet of up to 90% meat, as shown by bone and faecal analysis
• cutting up meat using stone tools, which were slightly different for each group.

The genome of H. neanderthalensis has been sequenced using nuclear DNA extracted from bones. This has allowed comparisons with the genome of modern H. sapiens. From the data it is believed that the two species shared a common ancestor, most likely H. heidelbergensis, 270 000 - 440 000 years ago. There are DNA sequences in H. sapiens that are known to vary between individuals by only a single base. Researchers analysed these DNA sequences from H. sapiens populations in Western Europe, Southern Africa, West Africa, China and Papua New Guinea and compared them with H. neanderthalensis. It was found that H. neanderthalensis and non-African H. sapiens populations had 4% of their DNA in common. These DNA sequences are unique to them, and not found in the H. sapiens from the African populations.


Related Discussions:- Explain about homo neanderthalensis

What is concentration gradient, What is Concentration Gradient? The gra...

What is Concentration Gradient? The graduated dissimilarity in concentration of a solute per unit - distance by a solution.

What is atrial extrasystoles, Q. What is Atrial Extrasystoles? Atrial p...

Q. What is Atrial Extrasystoles? Atrial premature beats often occur at lower workloads and have little significance. As exercise increases, they usually subside and may then re

Ascariasis, Ascariasis This disease is found in young calves causing di...

Ascariasis This disease is found in young calves causing digestive disturbances and poor growth. E t iology: It is caused by Toxocara vitulorum in cow and buffal

What is pericardial effusion, Q. What is pericardial effusion? A perica...

Q. What is pericardial effusion? A pericardial effusion is viewed as an echo free space surrounding the heart, most commonly seen posteriorly. Echocardiography provides

How is a prototype drug different from other drugs, How is a prototype drug...

How is a prototype drug different from other drugs in the same class?

Tanco beans plant, what are the origin, morphology, active constituents, us...

what are the origin, morphology, active constituents, uses and market preparation of tanco beans ?

Why are agricultural fields often less stable, Why are agricultural fields ...

Why are agricultural fields often less stable than natural communities in the similar area? Because agricultural fields usually having one species of crop plant, they have low

Explain the bioavailability of vitamin e, Explain the Bioavailability of Vi...

Explain the Bioavailability of Vitamin E? For dietary purposes, vitamin E activity is expressed as a-tocopherol equivalents (a-TEs). One α-TE is the activity of l mg α-tocophe

Explain gellan gum, Explain Gellan Gum Gellan is an exopolysaccharide c...

Explain Gellan Gum Gellan is an exopolysaccharide consisting of  β-D-glucose,  β-D-glucuronic acid,  α-L-rhamnose with acetate and glycerate groups, produced by the bacterium S

Cell membrane, CELL MEMBRANE As discrete units of life  all living cell...

CELL MEMBRANE As discrete units of life  all living cells are separated from each other and from their external environment by an  extremely delicate (75 A to 100 a= 0.00075 to

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