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
VladimirAG [237]
3 years ago
7

In snapdragons, red flower color is incompletely dominant to white, with the heterozygote being pink; normal flowers are complet

ely dominant to symmetrical flowers; and tallness is completely dominant to dwarfness. The three gene pairs segregate independently. If a true-breeding white, tall, normal-flowered plant is crossed to a true-breeding red, dwarf, symmetrical flowered one, what proportion of the F2 plants will resemble the F1 plants in phenotype
Biology
1 answer:
IgorC [24]3 years ago
7 0

Answer:

9/32 Pink, Tall and Normal individuals Rr Tt Nn

Explanation:

<u>Available data:</u>

  • Red color RR
  • Pink color Rr
  • White color rr
  • Normal NN and Nn
  • Symmetrical nn
  • Tall TT and Tt
  • Dwarf tt

1st Cross:

Parental) rr TT NN   x   RR tt nn

F1) 100% RrTtNn

2nd Cross:

Parental) Rr Tt Nn   x   Rr Tt Nn

Knowing that these three genes assort independently, then we can infer that the F2 will have the next phenotypic proportions for each gene:

RR= 1/4 Red

Rr= 2/4  Pink

rr=1/4  White

TT + Tt= 3/4  Tall

tt=1/4 Dwarf

NN + Nn = 3/4 Normal

nn=1/4 Symmetrical

  • The proportion of the F2 plants that will resemble Rr Tt Nn (Pink, tall, Normal) in Phenotype

Rr= 2/4 pink

TT + Tt= 3/4  Tall

NN + Nn = 3/4 Normal

2/4  x  3/4  x  3/4 = 18/64= 9/32    

You might be interested in
Which expression correctly represents a reproductive
tekilochka [14]
This is referring to meiosis, which happens just once to make reproductive cells, unlike mitosis which is just simple copying.

In mitosis, one cell splits into two, but the number of chromosomes doesn't change. The original cell makes two copies of its chromosomes and divides them up.

\boxed{(2n\rightarrow\ 2n)}

In <em>meiosis</em>, however, our cell doesn't bother making those two copies. It just takes what it has and divides it between two new cells.

\boxed{(2n\rightarrow\ n)}

5 0
3 years ago
How do chloroplasts affect the functions of the cell?
tia_tia [17]
Chloroplast are an organelle in the plant cell that converts sunlight into energy and uses it for the growth of it.
It stores extra water for later use.

Hope it helps!!!

7 0
3 years ago
How is continental crust different from oceanic crust?
PIT_PIT [208]

Answer:

the last one, oceanic crust is more dense!

7 0
3 years ago
Read 2 more answers
A city bus travels along its route from Jackson Street 8 km to Aurora Avenue, where it turns and continues 13 km.
Kitty [74]
What's the question??
4 0
3 years ago
Read 2 more answers
If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see what?
Bad White [126]

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

Explanation:

7 0
3 years ago
Other questions:
  • Why is water important to cells
    14·1 answer
  • List and describe three stages of development of a fetus after conception.
    8·2 answers
  • How are primary consumers different from secondary consumers
    15·1 answer
  • In fruit flies, straight wings are dominant and curly wings are recessive. What will the generations look like? Assume that Mend
    8·1 answer
  • Dichotomous keys are constructed based on
    12·1 answer
  • What is the name of an organism that eats only producere?
    14·1 answer
  • Si el ser humano formara parte de esta cadena trófica, si este contaminante fuera mercurio ¿qué consecuencias tendría para su sa
    10·1 answer
  • The part of a cell that allows sunlight, CO2 and H2O to enter is known as the
    5·2 answers
  • Failure to launch refers to a syndrome wherein some children fail to leave home by age _____.
    13·1 answer
  • 5. Which of the following steps in a scientific investigation is
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!