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In prophase I there is a phenomenon known as genetic recombination or crossing over. Similar or homologous chromosomes get together to form a structure known as a tetrad. Two chromosomes (of the four= tetra) are originally from the parental sperm and the other two chromosomes are from the maternal source. Exchanging the DNA from one chromosome to another mixes the genes on these chromosomes so that after crossing over each chromosome is a mixture of maternal and paternal genes.
What else can I help you with?
One disadvantage of a genetic mutation in a human cheek cell is that?
It may result in the production of a defective protein
What is a one word substitute for blind at birth?
Blindness at birth is often "congenital" (a result of genetic flaws).
What are some organisations for wildlife protection?
One of these organizations is The Center of Biological Deversity... It is located in Tuskan Arizona, u.s.a. These people specialize in making homes and such for these endangered specie
Offspring that are the result of sexual reproduction are?
Offspring that are the result of sexual reproduction are genetically unique due to the combination of genetic material from two parents. This genetic diversity allows for adaptation to changing environments and increased overall genetic fitness in a population.
Types of DNA that result when genes from one organism are put into another organism using genetic engineering are called this?
free
What happens to the zygote that is monosomic?
A monosomic zygote has one less chromosome than normal. This can result in genetic disorders or developmental abnormalities. Most monosomic zygotes are not viable and typically result in miscarriage.
Each cell of a punnett square represents one possible?
genotype combination that can result from a genetic cross between two individuals.
How are you at risk for arthritis?
Either as a result of trauma such as broken bones or joints. Or you have a genetic predisposition to one of the many forms of the disease. the cause of these is not as yet known.
What can cause epidermolysis bullosa?
Epidermolysis bullosa is a genetic disorder caused by mutations in genes that help hold the layers of the skin together. These mutations result in fragile skin that is prone to blistering and tearing from minor friction or trauma.
A heritable change in the characteristics within a population from one generation to the next?
This is known as genetic variation. It is the result of genetic mutations, recombination, and other genetic processes that can lead to differences in traits among individuals within a population. Over time, these variations can accumulate and contribute to the process of evolution.
What is one potential negative consequence of nonrandom mating based on geographic proximity?
One potential negative consequence of nonrandom mating based on geographic proximity is an increase in the prevalence of genetic disorders in the population due to higher chances of mating between individuals with common genetic traits. This can result in a higher frequency of inherited diseases and genetic abnormalities in offspring.
How can alleles be different from one another?
Alleles are different forms of a gene that can result in variations in traits. These differences can arise from mutations, genetic recombination, or genetic drift, leading to variations in the DNA sequence that ultimately determine the specific characteristics of an organism.
