Which genotypes will be exhibited in the offspring

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Next, you put the genotype of one parent across the top and that of the other parent down the left side. For example, if parent pea plant genotypes were YY and GG respectively, the setup would be:.

Note that only one letter goes in each box for the parents. It does not matter which parent is on the side or the top of the Punnett square. Next, all you have to do is fill in the boxes by copying the row and column-head letters across or down into the empty squares. This gives us the predicted frequency of all of the potential genotypes among the offspring each time reproduction occurs.

These will be the odds every time a new offspring is conceived by parents with YG genotypes. An offspring's genotype is the result of the combination of genes in the sex cells or gametes sperm and ova that came together in its conception.

One sex cell came from each parent. Sex cells normally only have one copy of the gene for each trait e. Each of the two Punnett square boxes in which the parent genes for a trait are placed across the top or on the left side actually represents one of the two possible genotypes for a parent sex cell.

Which of the two parental copies of a gene is inherited depends on which sex cell is inherited--it is a matter of chance. If you are not yet clear about how to make a Punnett Square and interpret its result, take the time to try to figure it out before going on. Why is it important for you to know about Punnett squares? The answer is that they can be used as predictive tools when considering having children. Let us assume, for instance, that both you and your mate are carriers for a particularly unpleasant genetically inherited disease such as cystic fibrosis.

Of course, you are worried about whether your children will be healthy and normal. RR x rr. How many different genotype variations are possible in the offspring of these crossed rose bushes? The F2 generation. That all offspring were both tall and short. Be recessive. Dominant trait appears in heterozygous offspring.

Recessive offspring and show two different phenotypes. A trait that exhibits incomplete dominance, is one in which the heterozygous offspring will have a phenotype that is a blend between the two parent organisms. An example of this is when a homozygous red sweet pea flower crossed with a homozygous white sweet pea flower, their offspring will be heterozygous and have the pink phenotype, rather than either red or white.

So, the homozygous red flower will be red, the homozygous white flower will be white, and the heterozygous flower will be pink. So there are three possible phenotypes in incomplete dominance. There are also no dominant or recessives genotypes. Log in. Botany or Plant Biology.

See Answer. Best Answer. Study guides. Q: A pansy homozygous for purple flowers is crossed with a pansy homozygous for pink flowers. Which genotypes will be exhibited in the offspring? Write your answer Related questions. When two homozygous plants with contrasting traits are crossed what are the expected genotypes for the offspring? If homozygous BB is crossed with homozygous bb what will the offspring have-?