1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garik1379 [7]
3 years ago
15

Someone please help me with Punnett square

Biology
1 answer:
anygoal [31]3 years ago
4 0

Answer:

1. Phenotype ratio = 3:1

Genotype ratio = 1:2:1

2. Phenotype ratio = 4:0

Genotype ratio = 4:0

3. Phenotype ratio = 1:1

Genotype ratio = 1:1

Explanation:

According to this question, a gene coding for tallness is involved. The allele for tallness (T) is dominant over the allele for shortness (t). The phenotype and genotype ratio of each parental combinations is given in the attached punnet square.

1. Tt × Tt

In this cross, both parents (Tt) will produce T and t gametes. Using this in a punnet square, the offsprings will be as follows: TT, Tt, Tt, and tt. Hence, The phenotype ratio is 3 tall: 1 short while genotype ratio is 1(TT): 2(Tt) : 1(tt).

2. TT × tt

In this cross, TT will produce T gametes while tt will produce t gametes. Using this in a punnet square, all offsprings will be heterozygous "Tt". Hence, The phenotype ratio is 4 tall: 0 short while genotype ratio is 4 (Tt) : 0 (tt).

3. tt × Tt

In this cross, tt will produce t gametes while Tt will produce T and t gametes. Using this in a punnet square, the following offsprings will result: Tt, Tt, tt and tt. Hence, The phenotype ratio is 1 tall: 1 short while genotype ratio is 1(Tt) : 1(tt).

You might be interested in
What happens in stage one of photosynthesis?
satela [25.4K]
Energy from sunlight is captured
8 0
3 years ago
The purity of cocaine in crack averages about __________.
AnnyKZ [126]
<span>This averages about 75 percent. This type of cocaine is a free base cocaine and is smoked. The high that it gives to the smokers is short but intense. It is also known as the most addictive form of cocaine.</span>
6 0
3 years ago
What is the answer to this?
lora16 [44]

Answer:

I say the correct answer is the 3rd one.

Explanation:

Answer is number 3

3 0
3 years ago
Why Do all the days of the year have the same amount of daylight?
barxatty [35]

Answer:

they dont

Explanation:

3 0
3 years ago
Most of the energy in the United States comes from:
Grace [21]
Solar power/energy or hydroelectric plants
8 0
3 years ago
Other questions:
  • Review Map D. Predict future weather for New Orleans, LA. What weather might occur there? What is the cause of this weather? Pre
    14·1 answer
  • A. An phaneritic rock containing about 30% calcium-rich plagioclase feldspar, about
    15·1 answer
  • Why is it important to classify the millions of species on earth?
    15·1 answer
  • What is one property of viruses that makes it difficult to cure viral infections
    13·1 answer
  • Which of the following is an example of biomimicry that has been used to solve a real-world problem?
    12·1 answer
  • Global mixing of Earth's atmosphere occurs in Earth's____
    6·1 answer
  • Which is a unique feature of Venus? A. The thick atmosphere—made mostly of carbon dioxide—absorbs solar radiation, heating up an
    8·1 answer
  • Mold, a form of fungi, reproduces
    7·2 answers
  • Since Asha is a healthy woman in her forties, she does not have Niemann-Pick disease type A. For this question, assume that she
    8·1 answer
  • In the Tough Man Competition, very strong men are challenged to push or pull extremely large and heavy objects to test their str
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!