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Was Genetic drift a factor in the diversity and evolution of humans?
Wiki User
∙ 11y ago
False, was.
Wiki User
∙ 11y ago
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What would occur if humans reproduced by parthenogenesis?
Humans are produced via sexual reproduction. That gives genetic diversity. You do not get such genetic diversity in case of the parthenogenesis. It is poor mode of reproduction.
Does humans ever have more then 46 chromosomes during their evolution?
Only in the case where there is a genetic deformity.
What are two processes that add to the genetic diversity of humans?
mutation and random mateing maybe not sure apex sucks anal
How you can explain diversity in humans?
Diversity is the difference in humans and covers different factors. Some Diverse factors in humans are age, gender, sexuality, race, ethnic group, religion, talents, race, spoken language and culture.
How the chemical composition and genetic information of humans resemble the chemical composition and genetic information of other organism?
Humans share about 95% genetic similarity with mice. http://www.bookrags.com/research/model-organisms-gen-03/
It is believed that genetic drift was a factor in the diversity of humans?
true
What would occur if humans reproduced by parthenogenesis?
Humans are produced via sexual reproduction. That gives genetic diversity. You do not get such genetic diversity in case of the parthenogenesis. It is poor mode of reproduction.
Does humans ever have more then 46 chromosomes during their evolution?
Only in the case where there is a genetic deformity.
Is crossing over a chromosomal abnormality?
No, it is normal for chromosomes to cross over. Crossing over is how we humans have genetic diversity.
What are two processes that add to the genetic diversity of humans?
mutation and random mateing maybe not sure apex sucks anal
Example of genetic diversity?
The potato famine in Ireland is an example of genetic diversity. Instead of propagation from seed for genetic diversity, they propagated from existing potatoes, clones, and when a blight occurred it wiped out the food source for an entire population
What is exactly is a genographic project?
The Genographic Project maps the migratory history of humans and the genetic diversity of humans. National Geographic and IBM partnered in this global five year study in 2005.
Which of these is not an idea put forth by evolutionary biologists aChanges in the genetic code lead to changes in the diversity of life. bHumans are descended from apes.?
Humans are decended from apes
How could cloning help save endangered animals?
Cloning may be a quick fix to increase the number of individuals. However, numbers are not everything. What is more important to small population sizes is genetic diversity, in other words the amount of genetic variation that exists within a population. Populations with significant reduction in genetic diversity will have a drastically increased likelihood of producing offspring with a recessive genetic disorder (the same reason why inbreeding in humans will likely result in some problem with the child). Besides this, genetic diversity allows populations to adapt in the event of a strong environmental change (e.g. climate change). In other words, if the environment changes, diversity makes it likely at least some of the individuals are adapted to survive.
What do humans benefit from diversity?
Diversity increases the chance of human survival. When a species is more diverse there is a larger chance of the population surviving an epidemic or such that might relate to biological variations in DNA or variations in "fitness" (biological variations). based on Darwin's Theories and Evolution
What is human physical diversity?
Human physical diversity is diversity of humans. It can be at a single place or spread across.
How does crossing over contribute to genetic diversity?
Crossing over in Prophase I in Meiosis aids genetic diversity because it allows for more unique combinations of chromosomes to be produced. Genetic variability strengthens a population, and influences evolution. 2n= # of possible gamete possibilities. In humans, this number is 46. n= # of chromosomes, which is 23 in a single cell. 2^23= 8 million different gamete possibilities, without any crossing over. A resulting zygote (result of the fertilization of the sperm gamete and egg gamete) would have 2^23 * 2^23 = over 7 trillion possibilities of chromosome combinations. All of this, of course, is without crossing over. The numbers become infinitely high once genetic material is exchanged between two sets of homologous chromosomes during Prophase I.
