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Question
What is back cross?
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Solution
The back cross is a cross of an F1 hybrid with any one of the parental genotypes. The back cross is of two types; they are dominant back cross and recessive back cross. It involves the cross between the F1 off spring with either of the two parents.
RELATED QUESTIONS
Explain Mendel’s dihybrid ratio with the help of any one cross.
Complete the following sentence with appropriate word:
A character that is suppressed is _________.
In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seed pant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in the F1 generation?
Identify the statementls that is/are NOT the correct reason/s for Mendel's success in his hybridization experiments.
i. Each factor controlled the single trait and is located on separate chromosomes.
ii. In the pea plant, contrasting characters can be easily recognized.
iii. Mendel carefully recorded the number of plants of each type and expressed his results as ratios.
iv. Mendel performed biochemical assays for identifying the position of 'factors' on chromosome.
In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates ______.
A normal green male maize is crossed with albino female. The progeny is albino because ______.
A dihybrid condition is ______.
In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.
Do genetic combination of mothers play a significant role in determining the sex of a new born?
Independent assortment means:
