A plant has two varieties, one with red petals and the other with white petals. When these two varieties are cross-pollinated, all the offsprings have red petals?
(a) Which gene is dominant?
(b) Choose suitable letters to represent the two genes.
Answers
Answered by
9
Explanation:
a)athe gene for the red Petals is dominant, while the gene for White Petals is recessive.
b)the gene for red Patel is represented by R and the gene for White petals is represented by r.
Answered by
6
Genes controlling the red color (Dominant) with genotypes RR
Explanation:
- In Mendelian crosses, the Dominance effect is observed when one allele masks or suppresses the effect of another allele.
- The dominant allele is denoted by capital letter whereas the recessive allele is denoted by a small letter.
- In the given question since the produced offsprings are of red color only, therefore, the red color gene is dominant.
- Now, let us assume the red color is determined by homozygous pair of alleles: RR and white by rr.
Making a cross between them
R R
r Rr Rr
r Rr Rr
- All offsprings produced are Rr (Red color)
Learn more about Mendelian crosses:
Mendelian principles: brainly.in/question/6612665
Mendelian crosses: brainly.in/question/5744095
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