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
artcher [175]
3 years ago
11

A dihybrid cross is performed between plants that differ in two Mendelian traits: Stem length (T or t) and flower coloration (R

or r). Tall plants are dominant to small plants and red flowers are dominant to white flowers. The cross is between two TtRr individuals.What is the expected ratio of offspring that have tall stems and white flowers? A. 3/16 B. 1/16 C. 3/4 D. 9/16 E. 1/4
Biology
1 answer:
Dahasolnce [82]3 years ago
4 0

Answer:

A. 3/16

Explanation:

The four possible outcomes for Stem length are:

Tt, tT, TT and tt.

The dominant trait (tall stems) will manifest itself in 3 out of 4 outcomes, so its ratio is 3/4.

The four possible outcomes for flower coloration are:

Rr, rR, RR and rr.

The non-dominant trait (white flowers) will manifest itself in 1 out of 4 outcomes, so its ratio is 1/4.

Multiplying both ratios gives us the ratio of offspring that have tall stems and white flowers:

\frac{3}{4}*\frac{1}{4}=\frac{3}{16}

Therefore, the answer is A. 3/16

You might be interested in
Why do some leaves turn yellow or orange in the fall?
Darya [45]

Answer:

C

Explanation:

The correct answer is C. because the carotenoid pigment has increased

8 0
3 years ago
Interphase consists of what part of the cell cycle?
LuckyWell [14K]

Answer:

This is DNA replication

Explanation:

G1 --> S --> G2 --> PMAT

6 0
2 years ago
The body sizes of sympatric and allopatric P. cinereus and P. hoffmani are consistent with a hypothesis of character displacemen
Genrish500 [490]

Answer:

Option C - The sympatric salamander populations evolved their present body sizes after they became sympatric.

Explanation:

First, note the definitions of each terms.

1) Sympatric occurs when organisms especially of same species occurring in the same, or in overlapping territory, do not interbreed.

2) Allopatric occurs when organisms are NOT living in the same territory and thus unable to crossbreed.

On 1st QUESTION

The argument would be strengthened by the failure of P. cinereus and P. hoffmani to crossbreed making traits for body size to become distinct (dissimilar) in each specie.

On 2nd QUESTION

Definitely, salamanders species occurring in the territory, do not interbreed after they became sympatric, thus, making characters among same species to be increasingly different over generations.

7 0
3 years ago
What is the process of frost action
sashaice [31]

Answer:

<h2>Frost is the decrease in air temperature to a value equal to or lower than the freezing point of water 0 ° C (WMO, 1992). The ice cover is one of its forms produced by the sublimation of water vapor on objects; it occurs when these temperatures are present (Ascaso and Casasls, 1986).</h2>

Explanation:

<h2>MEXICO ♥</h2>
3 0
2 years ago
Read 2 more answers
Describe the events that take place during Prophase – I of meiosis.
Scilla [17]

leptotene : homologus pairing is formed  and chromosomes start to get closer to each other.

zygotene: synapsis is formed between homologus chromosomes  which is apoint oattachment.

pachytene:crosing over occer that homologus chromosomes exchange THIER GENETIC METERIALS.

DIPLOTENE: chiasmata formation disapear which was formed in pachytene.

diakinasis:homologus chromosomes start to seperate from each other.

8 0
3 years ago
Other questions:
  • Because of their ability to undergo _____, viruses can rapidly evolve. protein synthesis serious infections frequent mutations D
    13·2 answers
  • Why are people who are heterozygous for sickle cell disease generally healthy?
    9·1 answer
  • Worker bees don't get a chance to reproduce. Instead, they take care of their honeybee colony. They are a good example of animal
    7·1 answer
  • Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. view available
    6·1 answer
  • What is the red blood cell job?
    7·1 answer
  • The top layer of the crust is mostly what type of rock?
    15·2 answers
  • A) Yes,because the amino acid changed.
    11·1 answer
  • Help me PLEASE! Choose one answer! First one to answer get Brainliest!
    9·2 answers
  • A carrier mother (XHXh) of hemophilia marries a normal father(XHY). *Use allele letter H What are the mothers and fathers genoty
    15·1 answer
  • This is a picture of a coordinate graph.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!