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If a plant is both heterozygous for tall (Tt) and for red flowers (Rr) the resulting gamete could be any one of the following combinations of alleles TR Tr tR or tr. This is explained by which of Mend?
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When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
The phenotypic ratio resulting from a dihybrid cross showing independent assortment is expected to be what?
The phenotypic ratio resulting from a dihybrid cross showing independent assortment is expected to be 9:3:3:1. This ratio is obtained when two heterozygous individuals are crossed for two traits that are independently inherited. The ratio represents the different combinations of phenotypes that can arise from the cross.
What gene pair is made up of one dominant allele and one ressecive allele?
A heterozygous condition resulting in the dominant genes expression in the phenotype.
What is the importance of crossing - over during the first division of meiosos?
It increases the likelihood that the resulting cells will contain different genetic combinations.
Does cytokinesis provide new genetic combinations?
Yes. Crossing over (or recombination) shuffles sequences between homologous chromosomes. The resulting chromosomes have different combinations of alleles from the original chromosomes.
When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
When the two haploid gametes contain two different alleles of a given gene the resulting offspring is called?
A heterozygote. An organism with the same alleles at a locus is called a "homozygot".
The phenotypic ratio resulting from a dihybrid cross showing independent assortment is expected to be what?
The phenotypic ratio resulting from a dihybrid cross showing independent assortment is expected to be 9:3:3:1. This ratio is obtained when two heterozygous individuals are crossed for two traits that are independently inherited. The ratio represents the different combinations of phenotypes that can arise from the cross.
Two plants are crossed resulting in offspring with a 3 to1 ratio for a particular trait This suggests?
That the parents were both heterozygous!
Which organism would most likely have new gene combinations?
A hamster resulting from sexual reproduction
What gene pair is made up of one dominant allele and one ressecive allele?
A heterozygous condition resulting in the dominant genes expression in the phenotype.
In humans straight toes S is dominant over curled toes s What would be the result of a cross between a recessive male and a heterozygous female?
The resulting offspring will have 50% chance of having straight toes and being heterozygous, and 50% chance of having curled toes and being recessive.
Following electrophoresis what is the resulting DNA pattern called?
footrprint
What is the importance of crossing - over during the first division of meiosos?
It increases the likelihood that the resulting cells will contain different genetic combinations.
Does cytokinesis provide new genetic combinations?
Yes. Crossing over (or recombination) shuffles sequences between homologous chromosomes. The resulting chromosomes have different combinations of alleles from the original chromosomes.
How does meiosis accounts for recombinant phenotypes?
recombinants are formed in prophase I because that is when crossing over occurs. Crossing over brings the alleles together into new combinations, switching two traits but not all of them. Then in the following steps of meiosis the recombinants are distributed into different gametes, resulting into recombinant phenotypes.
What is the synonym for the word following?
next, subsequent, succeeding, ensuing, resulting
