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
vivado [14]
2 years ago
8

Suppose Stephen breeds flowers and wants to optimize production of offspring with both short stems and white flowers, which are

coded for by two genes with the recessive alleles t and p, respectively. In flowers, T codes for tall stems and P codes for purple flowers. Stephen crosses two heterozygotes that produce 544 offspring. How many of these 544 offspring are predicted to have both short stems and white flowers
Biology
1 answer:
Korvikt [17]2 years ago
3 0

Answer:

From the whole progeny of 544 plants, 34 individuals are expected to have short stems and white flowers.

Explanation:

<u>Available data:</u>

  • short stems coded for by  recessive allele t
  • white flowers coded for by recessive allele p
  • T codes for tall stems
  • P codes for purple flowers
  • Cross between two heterozygous individuals
  • Total number of the progeny 544

In a dihybrid cross, it is expected to get a phenotypic ratio of 9:3:3:1

Cross:

Parentals)     TtPp     x     TtPp

Gametes)  TP  Tp  tP  tp

                  TP  Tp  tP  tp

Punnett square)

        TP        Tp        tP        tp

TP   TTPP    TTPp   TtPP   TtPp

Tp   TTPp    TTpp   TtPp   Ttpp

tP    TtPP      TtPp    ttPP     ttPp

tp    TtPp     Ttpp     ttPp     ttpp

F1)

  • 9/16 T-P-
  • 3/16 T-pp
  • 3/16 ttP-
  • 1/16 ttpp  

(<em>Note: The "-" symbol represents either a dominant allele or a recessive one</em>)

From these possible genotypes and phenotypes, we can get their corresponding amount of individuals

16 ---------- 544 individuals

9 ------------X = 306 individuals tall stems and purple flowers T-P-

3-------------X = 102 individuals with tall stems and white flowers T-pp

3------------ X = 102 individuals with short stems and purple flowers ttP-

1 ------------ X = 34 individuals with short stems and white flowers, ttpp

You might be interested in
Earth is made mostly of metals and rocks. where did this material come from?
Viktor [21]
 comes  from the earth's crust<span />
6 0
2 years ago
An unnatural warming of the atmosphere near earth's surface is called
mr Goodwill [35]
The answer is global warming
5 0
3 years ago
Gravity on the moon is about 1/6th the gravity felt on the Earth. This is because
garri49 [273]
The moon has less gravity because it is smaller than the Earth.
8 0
3 years ago
Read 2 more answers
What happens during photosynthesis
Nataly [62]
Photosynthesis is when plants use sunlight to synthesize food from carbon dioxide. Plants are autotrophs (they make their own food) and the food they synthesize creates carbohydrates, so the correct answer is D - autotrophs produce carbohydrates.

Hope this helps.
8 0
2 years ago
Read 2 more answers
How would you test the presence of starch in leaves?
Lesechka [4]

Answer:

1. Remove a green leaf from the plant

2. Boil the leaf in boiling <u>water stop enzymatic reaction within cells in leaf</u>

3. Put the boiled leaf in boiling tube containing alcohol <u>extract (ethanol) chlorophyll ethanol dissolves Lipids in cell membranes.</u>

4. Return to leave to the hot water <u>soften the leaf and allows penetration of </u><u> </u><u>i</u><u>odine</u>

5. Remove leaf and perform the iodine test

Explanation:

<em>starch is white powdery substance consisting of glucose which is used by plants as food the percents of starch in leaves evidence enough of the process a photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis</em>.

I hope this helps :)

4 0
3 years ago
Other questions:
  • Briefly define the purpose of the following organelles: Nucleus, Ribosome, Nucleolus, RER (Rough Endoplasmic Reticulum), SER (Sm
    12·1 answer
  • Match each cellular defense with the infection it would most likely target.
    5·1 answer
  • Most eukaryotes have what kind of developed nervous system
    9·1 answer
  • Skeletal muscle contraction requires large amounts of energy in the form of _____________________ in order to complete the seque
    15·1 answer
  • Why did other parts of the Megalodon never turn into fossils?
    10·2 answers
  • What is the typical structure of a long bone?
    10·1 answer
  • A population of 20 squirrels, with 10 males and 10 females, colonizes a new area with no predators and enough plant species to s
    11·1 answer
  • Quiz
    13·2 answers
  • 2. An example of an internal stimulus
    5·1 answer
  • Which energy producing process takes place in this organelle
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!