
The character that appear in the first generation are called as
A.Recessive characters
B.Dominant characters
C.Both recessive and dominant characters
D.None of the above
Answer
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Hint: A hybrid plant is that the results of cross pollinating of totally different plant varieties and growing the seed the combination of characteristics produces. The plant that grows from that seed combination is termed as hybrid.
Complete answer:
1.Cross planting is finished to induce some kind of valued attribute of every initial selection into the offspring,
2.Hybrids can be developed for resistance to any illnesses, size of plant, flower, or fruits, enhanced flowering, colour, style or any reason a plant can be thought of special.
Taking the example:
a.Consider 2 totally different alleles of a sequence for tallness and shortness. Let’s denote them as ‘A’ for tallness and ‘a’ for shortness.
b.Once we cross 2 tall plants that are unit having alleles “AA” and “AA” it leads to a tall plant.
c.Once more once we cross 2 dwarf plants that area unit having alleles “aa” and “aa” the hybrid plant made are going to be short having “aa” sequence. Result of this, a stable and short plant is made.
d.Now we’ll cross these 2 plants, one with its alleles as “aa” and also the alternative one with “AA” alleles. Result of this can end in a plant with an “Aa” sequence. Here, the plants are going to be tall because the factor “A” dominates over the factor “a”.
Hence the correct answer is OPTION(B)
Note: Genotype: Genotype is that the set of genes found independent. Ex: Genes that are present for color of eye, complexion etc.
Phenotype: Phenotype is that the all discernible or expressed characteristic independent. Ex: Tallness or shortness, colour of eyes.
Complete answer:
1.Cross planting is finished to induce some kind of valued attribute of every initial selection into the offspring,
2.Hybrids can be developed for resistance to any illnesses, size of plant, flower, or fruits, enhanced flowering, colour, style or any reason a plant can be thought of special.
Taking the example:
a.Consider 2 totally different alleles of a sequence for tallness and shortness. Let’s denote them as ‘A’ for tallness and ‘a’ for shortness.
b.Once we cross 2 tall plants that are unit having alleles “AA” and “AA” it leads to a tall plant.
c.Once more once we cross 2 dwarf plants that area unit having alleles “aa” and “aa” the hybrid plant made are going to be short having “aa” sequence. Result of this, a stable and short plant is made.
d.Now we’ll cross these 2 plants, one with its alleles as “aa” and also the alternative one with “AA” alleles. Result of this can end in a plant with an “Aa” sequence. Here, the plants are going to be tall because the factor “A” dominates over the factor “a”.
| Gametes | A | A |
| A | AA | AA |
| A | AA | AA |
| Gametes | a | a |
| a | aa | aa |
| a | aa | aa |
| Gametes | a | a |
| A | Aa | Aa |
| A | Aa | Aa |
Hence the correct answer is OPTION(B)
Note: Genotype: Genotype is that the set of genes found independent. Ex: Genes that are present for color of eye, complexion etc.
Phenotype: Phenotype is that the all discernible or expressed characteristic independent. Ex: Tallness or shortness, colour of eyes.
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