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guapka [62]
3 years ago
5

When Mendel crossed true-breeding tall pea plants with true-breeding short pea plants, all the offspring were tall. Then he allo

wed the first generation
tall plants to self-pollinate.
What were the expected ratios of phenotypes in the F2 generation?
o A. Because this is a monohybrid cross of pea plants that carry two alleles for plant height, the expected ratio is 3 tall : 1 short.
B. Because this is a dihybrid cross of pea plants that carry three alleles for plant height, the expected ratio is 9 tall: 3 intermediate: 1 short.
C. Because this is a dihybrid cross of pea plants that carry four alleles for plant height, the expected ratio is 4 tall: 1 short.
D. Because this is a monohybrid cross of pea plants that carry two alleles for plant height, the expected ratio is 1 tall: 1 short.
Biology
1 answer:
Basile [38]3 years ago
8 0

Answer:

10

Explanation:bc im smrt

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Plz help
sweet-ann [11.9K]

Ansa million. once you're staring at in ordinary terms one technology, it relatively is, all those fruit flies have been produced via 2 mum and dad, then the only plausible parental genotype that provide you a 50/50 ratio is that if the mummy is XwXw and the father is Xry... this gene is carried on the X chromosome, and w represents white eyes and r represents purple eyes. you are able to bypass forward and draw this out in case you like, even yet it provides 50% heterozygous women individuals (with purple eyes, provided that purple is dominant), and 50% white eyed men, who can in ordinary terms inherit Xw from their mom. The Y that they could inherit from the father could have not any effect on their eye shade. it relatively is comparable for women individuals, they are in a position to in ordinary terms inherit Xw from their mom and an Xr from their father, meaning they'll continually be heterozygous for the attention shade gene. 2. returned, set us the genotypes so which you will visualize it; we are going to say that this disease is carried on the X chrmsm (thats whats usually assumed), and the gene for customary creative and prescient is XB, yet for colorblindness its Xb. those are dominant/recessive to boot. So, if the girl is a provider, her genotype is XBXb, and if the male is colorblind, his genotype is XbY. in case you draw this out in a punett sq., you will get 25% heterozygous woman, 25% colorblind woman, 25% well-known male, and 25% colorblind male. so, there's a 50% risk that any baby they have would be colorblind, 50% risk if its a woman, or 50% risk if it relatively is male.wer:

Explanation:

5 0
3 years ago
Radiometric dating of a sedimentary rock sample shows an age of 1.5 million years. What conclusions can be drawn from this data?
JulijaS [17]

Answer:

I believe, The rock is a minimum of 1.5 million years old but it may be older

Explanation:

Gradpoint

6 0
3 years ago
The copying mechanism of DNA is most like
algol [13]

The correct answer is: a. using a photographic negative to make a positive image  

A negative image is a total inversion of positive image (normal image). Negatives are normally used to make positive prints.

This can be compared to copying mechanism of DNA-replication of DNA in which one strand of DNA (e.g. 3’-5’ orientation) is used as a template to make new strand with opposite orientation (5’-3’).

7 0
4 years ago
Functions of energy in living organisms
never [62]
The functions of energy in a an organism is to live and reproduce
4 0
3 years ago
Which of the following is most consistent with the modern theory of evolution​
Alecsey [184]

The correct answer is Parents pass their physical traits to their offspring; those offspring with traits that help them survive in their environment are able to reproduce.

Explanation:

The modern theory of evolution explains the mechanisms that make organisms change. One of the main ideas this theory proposes is that organisms with traits that help them survive or reproduce have higher chances to pass their genes and traits to new generations. This mechanism makes certain traits to be favored and contributes to the evolution of organisms because after multiple generations certain traits will prevail while others will be eliminated.

Moreover, this theory specifies genes in an organism are not acquired or modified during its life but these are the results of the traits passed to the organism by its parents and evolution occurs only after a long time or multiple generations. According to this, the first option is the correct one.

5 0
4 years ago
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