Biology, 17.01.2020 05:31 jadarriyon16

In tomato’s, red fruit (r) is dominant over yellow fruit (r). what is the probability that an offspring of plants that are heterozygous (rr) produce plants with the homozygous recessive (rr) genotype?

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The probability of an offspring of plants that are heterozygous produce plants with homozygous recessive genotype in ratio of :

RR : Rr : rr

(red) : hybrid : (yellow fruit )

1 : 2 : 1

Explanation:

Parental generation : RR rr

(red fruit ) (yellow fruit )

Gamete formation : R,R r,r

First filial generation : Rr (All are red because red is dominant )

Now let us cross the parents that is heterozygous Rr with homozygous rr :

Parental generation : Rr Rr

Gamete formation : R,r R,r

The second filial generation generation obtained :

R r

R RR Rr

r rR rr

The genotypic ratio :

RR : Rr : rr

(red) (yellow fruit )

1 : 2 : 1

Thus, the probability of an offspring of plants that are heterozygous produce plants with homozygous recessive genotype in ratio given above

Answer from: Quest

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

Answer from: Quest

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

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In tomato’s, red fruit (r) is dominant over yellow fruit (r). what is the probability that an offspr...

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