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Nonamiya [84]
3 years ago
11

To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up

complementation tests. You obtain the following results ("+" indicates that complementation was observed; "-" indicates that no complementation was observed).
mutation 1 2 3 4 5 6 7
1 -
2 - -
3 + + -
4 - - + -
5 + + - + -
6 + + - + - -
7 - - + - + + -
How many different genes are contributing to the wingless phenotypes in these mutant fly strains?
Biology
1 answer:
8090 [49]3 years ago
6 0

Answer:

Two genes.  

There are two change gatherings:  

Changes 1,2,4, and 7 didn't supplement one another, and thus are on a similar quality.  

Changes 3, 5 and 6 didn't supplement one another, however supplemented with transformations 1, 2, 4, and 7. Thus, these three transformations are available together on an alternate quality.

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Archaea bacteria are different from eubacteria largely by​
telo118 [61]

Answer:

B)Genome

Explanation:

Archaea (Archaea) are single-celled microorganisms. Like bacteria, archaea lack a nucleus and are therefore prokaryotic. However, the differences at the molecular level between archaea and bacteria are so fundamental that they are classified into different groups. In fact, these differences are greater than there are, for example, between a plant and an animal. <u>Currently, archaea are considered to be </u><u>phylogenetically</u><u> closer to eukaryotes than to bacteria.</u>

Eubacteria are also known as "true bacteria", they are microscopic organisms that have prokaryotic cells. Because of their prokaryotic cells, they have a rigid cell wall, but they don't have mitochondria or other large organelles; They only have one chromosome, which is not found in the nucleus. Most of them reproduce asexually

4 0
3 years ago
Which include the male and female sex cells
KiRa [710]
  <span>Males and females are attracted to each other in order to ensure the viability and fertility of the offspring, which is also why it is uncommon that males of one species be attracted to females of another. Members of two different species cannot mate and thus cannot produce fertile, viable offspring, unless they are part of different sub-species. But they must be part of the same species. 
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4 0
3 years ago
Why are antibiotics effective in curing diseases against some pathogens but not others?
Leya [2.2K]

Answer:

The correct answer is "I, II, and III".

Explanation:

The missing options of this question are:

I only

II only

III only

I, II, and III

The correct answer is "I, II, and III".

Antibiotics are of different spectrums of activity depending on the number of pathogens they can kill. They are different reasons for this differences in antibiotic specificity:

I. Antibiotics interrupt processes found in some but not all pathogen cells. For instance, some antibiotics are directed to cell walls that not all bacteria posses.

II. Some pathogens have no metabolic processes to interrupt. The antibiotics that are directed to metabolic reactions of bacteria are not effective in treating viruses because they do not perform this metabolic reactions.

III. Some pathogens have developed genetic resistance to specific antibiotics. Bacteria have a remarkable genetic plasticity having plasmids that can be easily transmitted among them, which give them antibiotic resistance.

7 0
3 years ago
List three solutions that scientists are suggesting to solve the problems caused by monoculture farming.
liq [111]
Heirloom, Plants and organic foods.

Have a good day!
8 0
3 years ago
Which is an example of a fractional scale?
oee [108]

Answer:

Fractional or Ratio Scale: Afractional scale map shows the fraction of an object or land feature on the map. This type uses a set of numbers that represents the object or a landmark. As an example on the left photo, the orange-shadedscale represents a 2/3 fractional scale. 2.

6 0
3 years ago
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