In a flowering plant species, snapdragons, variation in flower color is determined by a single gene. RR genotype individ

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In a flowering plant species, snapdragons, variation in flowercolor is determined by a single gene. RR genotypeindividuals are red, Rr genotype individuals are pink, andrr genotype individuals are white. In a cross between twoheterozygous (Rr) individuals, the expected ratio ofred:pink:white-flowered offspring is 1:2:1. Biologists did twocross experiments, and ask whether the results differ significantlyfrom the expected.
(a) The first cross experiment ends up with 40 offspring,including 10 red, 21 pink, and 9 white.
(b) The second cross experiment ends up with 4000 offsprings,including 1000 red, 2100 pink, and 900 white.
Question 2 (Contingency test)
Trematodes of the species Euhaplorchis californiensismay infect the California kill fish, Fundulus parvipinnis.Researchers have observed that infected fish spend excessive timenear the water surface, where they may be more vulnerable to birObserved data
uninfected
Lightly infected
Highly infected
Column sum
Eaten by bird
1
10
37
Not eaten by bird
49
35
9
Row sum
Observed data
uninfected
Lightly infected
Highly infected
Column sum
Eaten by bird
1
10
37
Not eaten by bird
49
35
9
Row sum
Expected number
uninfected
Lightly infected
Highly infected
Column sum
Eaten by bird
Not eaten by bird
Row sum
Expected number
uninfected
Lightly infected
Highly infected
Column sum
Eaten by bird
Not eaten by bird
Row sum
7. State your conclusion.