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
notsponge [240]
3 years ago
9

In fruit flies, normal wing length, N, is dominant to apterous (no wings), n. Also, red eyes, R, are dominant to sepia eyes, r.

A particular fruit fly has normal wings and red eyes, but since these are the dominant traits, it is not possible to tell whether this fly is homozygous or heterozygous for these traits simply by looking at it. One way to find out is to perform a test cross. Which phenotype represents a fly that should be used in this test cross?
A. apterous with red eyes
B. apterous with sepia eyes
C. normal wings and red eyes
D. normal wings and sepia eyes
Biology
1 answer:
Sveta_85 [38]3 years ago
8 0
Stoned guy red eye is the correct answer
You might be interested in
Pleas help me with this
Veronika [31]
The ones about enzymes are chemical digestion and the ones about chewing are mechanical digestion.
7 0
3 years ago
How can the random distribution of alleles result in a predictable ratio?
levacccp [35]
Phenotypically and genotypically there are only two different ratios. If you think of a Punett square... 

<span>You could say that a pea plant with the trait for the dominant color green (G) could also carry the recessive trait for yellow (g). So let's say you mate a dominant green, (Gg) with another dominant green, (Gg). You would get 1 (GG), 2 (Gg) and 2 (gg). </span>

<span>Phenotypically (as in physical traitwise), the ratio is 3:1 because you have 3 green colored peas and one yellow. </span>

<span>Genotypically (as in traitwise), the ratio is 1:2:1, because you have 1 (GG), 2 (Gg) and 1 (gg). </span>

<span>So although it's random, for any specific trait there are only 4 different outcomes.</span>
4 0
3 years ago
The cost of a space mission is roughly $60 million. What type of obstacle to space exploration does this represent?
mestny [16]

funding.......................

7 0
3 years ago
John Allen is scheduled for a diagnosis on tooth #20. This is Mr. Allen's first time to the endodontist, and his subjective comm
laila [671]

Hello. This question is incomplete. The full question is:

John Allen is scheduled for a diagnosis on tooth #20. This is Mr. Allen's first time to the endodontist, and his subjective comments describe pain when chewing on the affected side and a constant dull pain lasting for approximately a week.

How do you think Mr. Allan knew ro come to a endodentist for dental treatment?

Answer:

Mr. Allan learned that he needed treatment with an endodentist through consultation with a general dentist.

Explanation:

It is likely that when Mr. Allan felt discomfort in the tooth, he made an appointment with the general dentist. Through the analysis of Mr. Allan's case, the general dentist realized that Mr. Allan had a very specific problem and that he should be treated with a professional, someone who could deal with the problem directly and more effectively. For this reason, Mr. Allan's dentist suggested that he look for an endodentist who could help him, since Mr. Allan was having problems with dental pulp.

3 0
3 years ago
Examples of the energy pyramid to explain production, distribution, and use of food resources
miss Akunina [59]
The energy pyramid (also called ecological pyramid) quantifies the energy transfer from one organism to another along the food chain. Energy decreases as you move through the levels from the bottom to the top of the pyramid.At the bottom are the p<span>roducers which bring energy from nonliving sources (sun) into the community (photosynthesis).
</span><span><span>After the producers (above them) are the primary consumers. They eat the producers, which makes them herbivores. Above them are the s</span><span>econdary consumers. They eat the primary consumers, which makes them carnivores. And at the top are the </span><span>Tertiary consumers.</span></span>
5 0
3 years ago
Other questions:
  • Choose the option that best describes the relationship between the cell wall thickness of parenchyma cells versus sclerenchyma c
    13·1 answer
  • What always affects measurement error in a experiment
    6·1 answer
  • Wich of the following can combine in a cell to convert a lower-energy molecule into a higher-energy molecule
    5·1 answer
  • What is represented by the base root of a phylogenetic tree? the extinction of the species the origin of the species evolution o
    14·2 answers
  • The pathogen for ringworm is __________.
    15·1 answer
  • 15 Points
    6·2 answers
  • An allele is an alternate form of the same gene.<br> A. <br> TRUE<br> B. <br> FALSE
    10·1 answer
  • (HELP FAST PLEASE)! This weather map showed the temperature in( •F) in the untied states on a winter day it also includes two pr
    6·1 answer
  • Which of the following is the largest ocean ecosystem, known for colonies of small, marine animals?
    12·1 answer
  • Hurry please
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!