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
uysha [10]
3 years ago
13

Punnett square question? 80 PTS FOR BEST ANSWER!

Biology
1 answer:
kkurt [141]3 years ago
7 0

Answer:

Explanation:

For number 4, it tells you that purple body color is dominant to blue.

When an allele is dominant over another allele (alleles are different forms of genes, represented using letters) that means only one dominant allele needs to be present to express the dominant phenotype (phenotype is the physical appearance determined by genotype). Since purple is dominant, we use a capital "P" to represent it. Since blue is not dominant, it is called recessive, so we use a lower-case "p" to represent it.

The first genotype they give you, it is "PP", and since at least one big P is there, the phenotype is purple.

The second genotype they give you is "Pp", and since there is at least one capital P, the phenotype is also purple. It does not matter that the second allele is a lower-case, because as long as there is a capital P present, it will masks the presence of the lower-case (recessive) allele.

The third genotype is "pp", both are lower-case, so there is not dominant allele to mask the recessive ones. So, the phenotype is blue. The recessive phenotype will only be phenotypically present if the genotype is homozygous recessive.

Homozygous - having both of the same alleles (PP or pp)

In which PP is known as homozygous dominant, because it is made from the dominant allele. And pp is known as homozygous recessive, because it is made from the recessive allele.

Heterozygous - having one dominant and one recessive allele (Pp)

Note: It does that really matter what letter you use, the importance is whether it is a capital or not because that tells you if it is dominant or recessive.

The same for square shape. It says that square is dominant over round, so a capital letter is used to represent square (S), and a lower-case to represent round (s).

Therefore, the phenotype would be:

Square, Square, round, respectively.

Number 5 is asking you to go from the phenotype (physical look) to the genotype.

Tall head is (T) and dominant to short (t).

Tall = could be PP or Pp (homozygous dominant or heterozygous). It could be both since in both genotypes at least one dominant allele is present, so it will result in a dominant phenotype.

Short = tt. It is "tt" because it is recessive, and the only way to physically show the recessive phenotype is to have a homozygous recessive genotype.

Green is dominant over blue, so again.

Green body - the genotypes could be GG or Gg. At long as there is one capital (dominant) allele.

Yellow body - gg (it is recessive, so it cannot have a capital "G", or that would masks the recessive g).

Hope this helps.

You might be interested in
A very acidic pH level is _____, and a very basic pH level is _____.<br><br> 1; 13<br> 13; 1
Tanya [424]
A very acidic pH level is 1, and a very basic pH level is 13. 
6 0
2 years ago
Read 2 more answers
How is a food web a limited model in regards to showing energy transfer?
tamaranim1 [39]
Because the energy is going to decrease to also nothing and the animals at the top have to hunt more than those closer to the bottom of the food web
3 0
3 years ago
Bacteria are organisms that reproduce asexually. How is this better for them
emmainna [20.7K]

Answer:

C

Explanation:

3 0
3 years ago
What is the first part of protein synthesis called?
ryzh [129]
Transcription is the correct answer
7 0
2 years ago
Read 2 more answers
Choose all the answers that apply. Metamorphic rock can form from __
andrew11 [14]
I think its c. igneous rock

5 0
3 years ago
Read 2 more answers
Other questions:
  • The lymphoid tissues of the intestinal tract are collectively referred to as
    7·1 answer
  • A blastula is
    8·1 answer
  • The Punnett square shown below shows a cross between the P generation. The genotype of the F1 generation represented by box 6 is
    10·1 answer
  • 1. A polymer is comprised of repeating monomers that are connected to each other through dehydration synthesis reactions. What a
    5·1 answer
  • Bumblebees show some ability to control their own body temperature. During cold weather, bumblebees have been observed warming t
    10·1 answer
  • Shale is a common sedimentary rock. Which of these was required to form shale?
    14·1 answer
  • Mendel,s experiment is applicable not only in plant but also in animals​
    6·1 answer
  • USE PICTURE ABOVE!! NEED ANSWERS ASAP!!! 8. Categorize What types of bonds are present in
    14·1 answer
  • What is not a way that land animals participate in the carbon cycle?
    11·1 answer
  • SC4: I can explain how the following are
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!