Answer:
because every year there is a new strain of flu
Explanation:
Data would support your hypothesis
Answer:
0%
Explanation:
The cross of a pea plant with round seeds (RR) with another pea plant with wrinkled seeds (rr) is shown as under :
P RR x rr
F1 Rr Rr Rr Rr
It is clear from the cross above, all the 4 probable progenies in filial 1 (F1) generation will be heterozygous with Rr genotype. Not even a single progeny will have homozygous recessive genotype which is responsible for producing wrinkled seeds. Also, even though the genotype of the progenies will be Rr not RR yet phenotypically they all will have round seeds i.e. they will show dominant trait. The reason behind it is that one of the alleles R which is responsible for dominant trait will mask the expression of recessive allele r. So, wrinkled phenotype which is a recessive trait will not be observed in any of the progenies.
Examples of allele types are HH. That is option 2.
<h3>Gene Allele </h3>
An allele in genetic studies is an alternative gene form that is located at a particular point of the chromosome. It is usually represented with capital and small letter of the same alphabet.
There are two types of a allele which include:
- Dominant allele: This is when the variation seen in a gene produces a noticeable phenotype. This is seen in the gene combination of HH.
- Recessive allele: This type of allele does not produce any visible noticeable phenotype. This is seen in hh.
Therefore, examples of allele types are HH
Learn more about allele here:
brainly.com/question/25813022
