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svetlana [45]
3 years ago
8

White eyes in flies are typically caused by some combination of four distinct mutations. research each of these mutations (below

) and summarize the genes they occur in by listing each one's: • normal function • what happens to a fly's phenotype when it is homozygous for a knock-out/null mutation (and why) • what chromosome it is found on • if the typical mutation is dominant or recessive
Biology
1 answer:
sp2606 [1]3 years ago
8 0
Gene reproduce cell mutation
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Consider the following planned experiment.
Vitek1552 [10]

Answer:

B

Explanation:

the size of pot is given two sizes, large and small, whereas the rest are the same therefore, the size of pot is being tested

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Which eats only plant foods
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Herbivore only eat plant food
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Match the following types of nervous systems with their functions.
Cloud [144]

The following are the types of nervous system and their functions.

1. Parasympathetic- functions as the relaxing response.

2. Sympathetic - functions as the flight and fight response.

3. Autonomic - it functions as the controller of automatic response.

4. Somatic- functions as controling voluntary response.

5. Peripheral- works as motor nerves and sensory which runs from and to central nervous system.

6. Central- works as the main interpretation and center of processing.

4 0
3 years ago
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You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the
krek1111 [17]

Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

Explanation:

A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

  • Chromatids, which are chromosomes, are found in the cell poles.
  • It initiates the formation of the nucleus membrane.
  • The chromosomes begin to turn into chromatin.
  • Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

<em>     a and d. In the other phases described, </em><em><u>S and G1,</u></em><em> no chromosome distribution is observed at the poles.</em>

<em>     c. A somatic cell does not experience </em><em><u>meiosis</u></em><em>.</em>

6 0
2 years ago
Which of the following is an advantage of an in vitro experiment?
olchik [2.2K]

Answer:

Which of the following is an advantage of an in vitro experiment?

Variables and environmental conditions are controlled.

Explanation:

An advantage of in-vitro experiment is that the variables and environmental conditions are controlled because in-vitro experiment is performed outside a living organism with the environment in control

6 0
3 years ago
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