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Novay_Z [31]
3 years ago
13

Experimental support for Mendel's law of segregation comes from the results of self-fertilizing F2 plants that display the domin

ant phenotype. Based on the law of segregation, what proportion of the dominant F2 plants would be expected to produce F3 progeny phenotypes in a ratio of 3 dominant : 1 recessive?
Biology
1 answer:
Tom [10]3 years ago
3 0

Answer:

2/3

Explanation:

When two heterozygous plants (let's suppose Tt and Tt) are crossed, the progeny exhibits dominant and recessive phenotype in a 3 : 1 ratio respectively. This occurs since T and t alleles present together in the heterozygous parent plant segregate from each other and are distributed to the different gametes.  

Cross Tt x Tt= 1/4 TT: 1/2 Tt: 1/4 tt

Considering the genotype of the F2 progeny, there is 2/3 heterozygous dominant progeny (Tt) out of a total of 3/4 dominant progeny. This heterozygous dominant progeny would give a 3:1 ratio of dominant and recessive progeny upon self-fertilization.

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olga_2 [115]

Answer:

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Explanation:

Since we are given data for both the food source and the finch population, the answer will most likely reflect that. Therefore eliminating choices A (disease) and C (feathers). Again, this answer is assuming the finch 1 population aligns with the seeds line and the finch two population lines up with the fruit line. The lines for the finch population will match with the availability of food, so less seeds mean less finch 1 and when the amount of seeds rise up you can see the population of finch 1 also rises.

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3 years ago
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AleksAgata [21]

Answer:

the animal cell will burst

Explanation:

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Explanation:

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ALNRETXE- a kind of fertilization outside the female body<br><br> :D
umka2103 [35]

\color {pink}\boxed{\colorbox{white} {✦External✦}}

hope it helps you<3

4 0
3 years ago
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