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How does sexual reproduction result in a larger variety of possible gene combinations?
Basically, in three ways. Independent orientation of the chromosomes in meiosis. Crossing over in chromosomes in meiosis. Random fertilization; the random mathching of any sperm/egg combination in fertilization.
Why do zygotes have different allele combinations from the gametes they result from?
When two gametes fuse to make a zygote, cross bridges form between the DNA from the two gametes. During cell division, the two gametes then separate, with some of the parts of gamete 1 being transferred to gamete 2 and vice versa. This recombination allows genetic diversity to occur. A gamete with ABCDE alleles will therefore "recombine" with a gamete with FGHIJ alleles to make, for example, ABHDJ cells. The new sequence will be replicated in subsequent cells.
Does sexual reproduction create new alleles or new combinations of alleles?
new combinations of alleles
What factor determines whether the frequency of the new allele will increase?
Which factor might determine whether the frequency of the new allele will increase in a population where a mutation occurs?
Would a dominant allele ever return to a population?
If a population does not have a particular dominant allele, it could return to the population through the immigration of new individuals carrying the dominant allele.
How does sexual reproduction result in a larger variety of possible gene combinations?
Basically, in three ways. Independent orientation of the chromosomes in meiosis. Crossing over in chromosomes in meiosis. Random fertilization; the random mathching of any sperm/egg combination in fertilization.
Why do zygotes have different allele combinations from the gametes they result from?
When two gametes fuse to make a zygote, cross bridges form between the DNA from the two gametes. During cell division, the two gametes then separate, with some of the parts of gamete 1 being transferred to gamete 2 and vice versa. This recombination allows genetic diversity to occur. A gamete with ABCDE alleles will therefore "recombine" with a gamete with FGHIJ alleles to make, for example, ABHDJ cells. The new sequence will be replicated in subsequent cells.
Which organism would most likely have new gene combinations?
Organisms that reproduce sexually, like humans or plants, are more likely to have new gene combinations because of the shuffling and recombination of genes that occurs during meiosis and fertilization. This results in offspring with unique genetic compositions different from their parents.
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
How are the allels for cystic fibrosis passed from parents to offspring?
Cystic fibrosis occurs as a result of inheriting a recessive allele for it from both parents. ... It states that different pairs of genes are passed to offspringindependently so that new combinations of genes
How are the alleles for cystic fibrosis passed for parent offspring?
Cystic fibrosis occurs as a result of inheriting a recessive allele for it from both parents. ... It states that different pairs of genes are passed to offspringindependently so that new combinations of genes
How do independent assortment crossing over and random fertilization affect the rate of evolution?
Independent assortment, crossing over, and random fertilization increase genetic variation in offspring, which provides the raw material for evolution to occur at a faster rate. These processes increase the likelihood of new combinations of alleles, leading to a greater diversity of traits within a population. This increased genetic diversity can drive natural selection and adaptation, ultimately contributing to the rate of evolution in a population.
What factor determines whether the frequency of the new allele will increase?
Which factor might determine whether the frequency of the new allele will increase in a population where a mutation occurs?
Would a dominant allele ever return to a population?
If a population does not have a particular dominant allele, it could return to the population through the immigration of new individuals carrying the dominant allele.
What is another name for the sudden appearance of a new allele?
Another name for the sudden appearance of a new allele is called a mutation. Darwin called it a sport of nature.
If a new allele appears in the population the Hardy Weinberg formula?
If a new allele appears in a population, the Hardy-Weinberg formula cannot be used. This is because there is now no equilibrium.
