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
Fofino [41]
3 years ago
13

Some inbred strains of the weedy plant Arabidopsis thaliana flower early in the growing season, but other strains flower at late

r times. Four different Arabdiposis plants (1–4) were crossed, and the resulting progeny were tabulated as follows: Mating Progeny 1 × 2 77 late : 81 early 1 × 3 134 late 1 × 4 93 late : 32 early 2 × 3 111 late 2 × 4 65 late : 61 early 3 × 4 126 late a. Explain the genetic basis for the difference in flowering time. How do you know that among this group of plants, the flowering time trait is influenced by the action of a single gene? Which allele is dominant and which recessive? b. Ascribe genotypes to the four plants. c. What kinds of progeny would you expect if you allowed plants 1–4 to self-fertilize, and in what ratios?
Biology
1 answer:
RoseWind [281]3 years ago
3 0

Answer:

a. Let us consider that L is responsible for late and l is responsible for early. From the mentioned data, it can be concluded that allele L or late is dominant over early. By crossing plants 1 and 4 we get the expected ratio of 3: 1, which shows that it follows Mendel's law of dominant.  

b. The genotype of all the four plants are:  

1st plant = Ll

2nd plant = ll

3rd plant = LL

4th plant = Ll

c. If the plant 1 is self-fertilized then the expected progeny will be 3 (late): 1 (early).  

In case if the 2nd plant is self-fertilized, the expected progeny will be only early.  

In case if the 3rd plant is self-fertilized, the expected progeny will be only late.  

In case if the 4th plant is self-fertilized, the expected progeny will be 3 (late): 1 (early).  

You might be interested in
A wave with a height of 10 feet and a wavelength of 20 feet has a wave base
leva [86]

Answer:

10 feet is the answer

hope it will help u

you

5 0
2 years ago
Read 2 more answers
How do humans obtain the nitrogen they use in their bodies
olya-2409 [2.1K]
<span>Most organisms, including humans, can't use the free gaseous form of nitrogen found in the air. We need other organisms and natural processes to "fix" nitrogen into a solid form that plants and animals can use. Most of the nitrogen that plants and animals use is made by bacteria.</span>
3 0
3 years ago
Read 2 more answers
Which of these is true for a daughter cell produced by mitosis?
cluponka [151]

The answer is A

Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.

8 0
3 years ago
Read 2 more answers
RNA plays important roles in many cellular processes, particularly those associated with protein synthesis: transcription, RNA p
Elena L [17]

Answer:

Explanation:transcription/RNA processing:

a) snRNA

c) mRNA

e) pre-mRNA

2. translation

b) tRNA

f) rRNA

3. not used in protein synthesis

d) RNA primers

4 0
3 years ago
What kinds of gene mutations are possible?
alexandr402 [8]

Answer:

Missense mutation.

Nonsense mutation.

Insertion.

Deletion.

Duplication.

Frameshift mutation.

Repeat expansion.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is Teddy's organization trying to accomplish?
    13·1 answer
  • Which of these would have the greatest diversity of sequences?
    15·1 answer
  • What would happen if the hormone levels did not have their peak just before
    11·1 answer
  • As altitude increases, atmospheric pressure decreases. For instance, at 18,000 feet you would obtain 29% less oxygen than you wo
    8·1 answer
  • In photosynthesis, redox reactions ultimately transfer electrons from ______ to ______.
    12·1 answer
  • Viruses have all of the characteristics of living things EXCEPT
    14·2 answers
  • On your way home from Wawa, you find a piece of slime on the sidewalk. Upon further analysis under the microscope at home, you o
    6·1 answer
  • What are some changes that farmers could have made to their agricultural practices to avoid the Dust Bowl?
    14·1 answer
  • What are the main differences between the two ecosystems in terms of organism population?
    6·1 answer
  • YES NO (c 10. Can a mother with type B blood have a child with type A blood? Explain. In​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!