What is the alleles of pea pot parents and the possible allele combinations of the offspring. Both parents are tall and 3 offsprings are tall while the other one is short. I don't get this!
Please help!
Thanks!!
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Assuming tall is dominant, the parents will be heterozygous for tallness. Use a Punnett Square.
http://www.hobart.k12.in.us/jkousen/Biology/psquare.htm
To understand the alleles and possible allele combinations of the pea plants in question, we need to consider the concept of genetic inheritance. In this scenario, we have two parents who are both tall, and four offspring, of which three are tall and one is short.
Inheritance in pea plants is governed by the segregation of alleles, with each parent contributing one allele for each trait to their offspring. The alleles for plant height in peas can be either "T" for tall or "t" for short.
Since both parents are tall, we can assume that they both have the genotype "TT" (homozygous dominant) for the tall allele.
When each parent contributes one allele to their offspring, there are two possible combinations of alleles that can result: "TT" and "Tt". The "TT" combination will result in a tall phenotype, while the "Tt" combination will also result in a tall phenotype, as the dominant "T" allele masks the expression of the recessive "t" allele.
Thus, the possible allele combinations for the four offspring in this case are:
1. TT (tall)
2. TT (tall)
3. TT (tall)
4. Tt (tall)
To summarize, the parents have the genotype "TT" for plant height, and the possible allele combinations of their offspring are "TT" (tall) and "Tt" (tall).