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Why do zygotes have different allele combinations from the gametes they result from?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 13y ago
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How many different non repeating allele combinations can appear in the gametes of a person with the genotype AABBCc?
ABC ABc
How many different allele combinations would be found in the gametes produced by a pea plant whose genotypes are RrYY?
It depends on the allele combinations of the other pea plant parent. If the other pea plant parent also has a genotype of RrYy, then there are 16 combinations. If the other parent has genotype RRYY, then there are only 4 allele combinations. If the other parent has a genotype of RrYY, then there are 8 allele combinations in the gametes. If the other parent has a genotype of RRYy, then there are also 8 possible combinations in the gametes. Finally, if the other parent has the genotype rryy, then there are 4 gamete combinations.
During the formation of gametes in a hybrid tall plantthe allele and the short allele stay together?
During the formation of gametes in a hybrid tall plant, the alleles for tall and short height do not stay together. They segregate and assort independently during meiosis, resulting in a random combination of alleles in the gametes. This allows for a variety of possible genetic combinations in the offspring.
Dominance exists in all allele combinations?
In some allele combinations, dominance does not exist.
How do you determine the possible gametes in a dihybrid cross?
Using a punnett square - you write the possible gamete combinations of one parent across the top and those of the other down the side.By filling in the square, you determine all the possible allele combinations of the offspring.XRDRdrDrdRDRRDDRRDdRrDDRrDdRdRRDdRRddRrDdRrddrDRrDDRrDdrrDDrrDdrdRrDdRrddrrDdrrdd
How many different non repeating allele combinations can appear in the gametes of a person with the genotype AABBCc?
ABC ABc
How many different allele combinations would be found in the gametes produced by a pea plant whose genotypes are RrYY?
It depends on the allele combinations of the other pea plant parent. If the other pea plant parent also has a genotype of RrYy, then there are 16 combinations. If the other parent has genotype RRYY, then there are only 4 allele combinations. If the other parent has a genotype of RrYY, then there are 8 allele combinations in the gametes. If the other parent has a genotype of RRYy, then there are also 8 possible combinations in the gametes. Finally, if the other parent has the genotype rryy, then there are 4 gamete combinations.
During the formation of gametes in a hybrid tall plantthe allele and the short allele stay together?
During the formation of gametes in a hybrid tall plant, the alleles for tall and short height do not stay together. They segregate and assort independently during meiosis, resulting in a random combination of alleles in the gametes. This allows for a variety of possible genetic combinations in the offspring.
Dominance exists in all allele combinations?
In some allele combinations, dominance does not exist.
How do you determine the possible gametes in a dihybrid cross?
Using a punnett square - you write the possible gamete combinations of one parent across the top and those of the other down the side.By filling in the square, you determine all the possible allele combinations of the offspring.XRDRdrDrdRDRRDDRRDdRrDDRrDdRdRRDdRRddRrDdRrddrDRrDDRrDdrrDDrrDdrdRrDdRrddrrDdrrdd
What gametes can be formed by an individual with the genotype Aa?
Half of the gametes will contain the A allele, and half will contain the a allele.
Genetic makeup or allele combinations?
Genotype
An organism's genetic makeup or allele combinations?
an organism's genetic makeup, or allele
Can an organism with a Gg genotype produce gametes with either the dominant or recessive allele in equal amounts?
Yes. Remember that a heterozygote can produce two types of gametes. In this case, the unknown would produce gametes with the dominant allele A or the recessive allele a. The homozygous recessive would still only produce one kind gamete, with the recessive a allele. Therefore, we expect to see only two genotypes in the F1, Aa and aa, in equal proportions.
What two types of gametes could result from AABb allele combination?
The two types of gametes that could result from the AABb allele combination are AB and Ab. This is because during meiosis, homologous chromosomes separate and randomly assort, leading to different combinations of alleles in gametes.
Do gametes have two alleles per trait and organisms have one?
Gametes contain only one set of chromosomes. They only have one allele for each gene because they are designed to combine with another cell in order to form an organism.
What was medels specific law where a diploid organism transfers only one allele to its gametes?
The law of segregation, which states that the two alleles for an inherited trait segregate (separate from each other) during gamete formation and end up in different gametes.
