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MArishka [77]
3 years ago
13

A mutant version of mouse-ear cress (Arabidopsis thaliana) has been engineered to convert it from a long-day plant to a short-da

y plant. What is responsible for triggering the development of flowers in this plant
Biology
1 answer:
igomit [66]3 years ago
8 0
<h2>Long And Short-Day Plants</h2>

Explanation:

<u>Long-day Plants- </u>

  • A plant that flowers simply subsequent to being presented to light periods longer than a specific basic length, as in summer.
  • Spinach, lettuce, and a few assortments of wheat are difficult day plants. Look at day-unbiased plant short-day plant at phototropism.  
  • Long  plants include such as  aster, cone flower,radish ,potato,hibiscus, cone flower, lettuce, spinach and  sugar beet.

<u> Short-day plants-</u>

  • A plant that requires a significant stretch of obscurity, is named a "brief day" (difficult night) plant..
  • Short-day plants structure blossoms just when day length is not exactly around 12 hours.
  • The fall flowering  plants and many spring are whole  day plants, such as  poinsettias and Christmas Christmas cactus and chrysanthemums.
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How does gene expression lead to differentiation
ExtremeBDS [4]
Every cell of the organism has the same DNA sequence and same genes. However, not all genes are expressed in every single cell at the same time. Only those genes necessary for a specialised function of a specialised cell are expressed in the specialised cell. For example, skin cells have some different proteins than nerve cells. Genes responsible for those "skin proteins" are activated in skin cells and are turned off in nerve cells.
3 0
3 years ago
A gene has 2 alleles, R &amp; B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
3.PTC is non-toxic and does not occur naturally. Do you think there is a selective pressure that confers an advantage to those w
VikaD [51]

No there is no selective pressure that confers an advantage to those who do taste it.

<h3>What is PTC?</h3>

Despite the fact that PTC isn't found in nature, tasting other bitter substances—many of which are toxins—that do occur naturally has a high correlation with taste sensitivity.

In order to defend themselves from being eaten, plants develop a range of harmful substances. Early humans developed the capacity to distinguish bitter tastes as a safeguard against ingesting dangerous plants. There are roughly 30 genes in humans that produce bitter taste receptors. People may taste a large variety of bitter substances because each receptor can interact with a number of different molecules.

Learn more about Taste with the help of the given link:

brainly.com/question/26220534

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4 0
1 year ago
It is a winter day in Florida, and the temperature is 40°F in the morning. While you are walking to class, your body uses a nega
zhannawk [14.2K]

Answer:

negative feedback

Explanation:

The negative feedback system is the most common in the body, being considered by many authors the primary mechanism for the maintenance of homeostasis. It causes a negative change from the initial change, that is, a stimulus contrary to the one that led to the imbalance. In the case of the above question, when the ambient temperature increased, your body began to sweat to lower the temperature, that is, your body is trying to make a stimulus contrary to what is happening in the environment, so we can state that your body is going through a negative feedback system.

5 0
3 years ago
microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of microorganisms pla
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Microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of carbon, nitrogen and sulfur.

<h3>What is Microorganisms?</h3>

Microorganisms, often known as microbes, are minute organisms that can be single cells or colonies of cells.

Ancient texts like the Jain scriptures from India's sixth century BC raised the specter of the potential existence of invisible microscopic life. In the 1670s, Anton van Leeuwenhoek used a microscope to observe microorganisms, which marked the beginning of the scientific study of microbes. Louis Pasteur disproved the hypothesis of spontaneous generation in the 1850s by discovering that bacteria were to blame for food degradation. Robert Koch determined in the 1880s that bacteria were to blame for tuberculosis, cholera, diphtheria, and anthrax.

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6 0
1 year ago
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