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Mutations can change what protein a section of codes for. The production of different proteins would cause different physical development; a new allele or "trait".
Wiki User
∙ 14y ago
Wiki User
∙ 15y agonew alleles are created my random mutations.
Wiki User
∙ 11y agoNew alleles arise through mutations. Some are good in that they help the species survive changes in the environment. Some do not help at all.
Wiki User
∙ 12y agoIn procaryotes: Mutations
In Eucaryotes: Gene shufling via Crossing over during meiosis or Mutations during S phase of Interphase.
Wiki User
∙ 15y agoBy Mutation
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Does sexual reproduction create new alleles or new combinations of alleles?
new combinations of alleles
What happens when both alleles of a gene pair independently express in a heterozygote?
Then a combination of the two visual forms of the alleles (meaning any visual things the alleles cause get combined) is formed. Either that, or one pair dominates the other, and the new person becomes a carrier of the dominated pair.
Are new alleles made by natural selection?
No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.
Is it true or false that during meiosis the two alleles for each gene stay together?
False. During meiosis, the two alleles for each gene can separate and be distributed to different gametes. This is known as Mendel's law of independent assortment, which allows for new combinations of alleles to be formed in offspring.
Where is genetic information located in a cell?
Genetic information is the combining of alleles and their outcome. Chromosomes form alleles and chromosomes are formed inside of a cell.
Does sexual reproduction create new alleles or new combinations of alleles?
new combinations of alleles
Which does sexual reproduction create new allels or new combinations of alleles?
new combinations of alleles
What are both inherited alleles called?
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.
What happens when both alleles of a gene pair independently express in a heterozygote?
Then a combination of the two visual forms of the alleles (meaning any visual things the alleles cause get combined) is formed. Either that, or one pair dominates the other, and the new person becomes a carrier of the dominated pair.
Principle of what states that alleles separate when gametes are formed?
Heredity
What is the separation of two alleles in a heterozygote when gametes are formed?
segregation
Are new alleles made by natural selection?
No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.
Is it true or false that during meiosis the two alleles for each gene stay together?
False. During meiosis, the two alleles for each gene can separate and be distributed to different gametes. This is known as Mendel's law of independent assortment, which allows for new combinations of alleles to be formed in offspring.
What do geneticists call alleles that are both expressed in the phenotype when they are together?
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.
Which does sexual reproduction create new alleles or new combination of allele?
Sexual reproduction creates a new combination of alleles.
What is new gene combinations?
when genes cross over during meiosis, then split they from genes that differ.
What does not add new alleles to a population gene population?
1.Which does not add new alleles to a population gene pool?
