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
RSB [31]
3 years ago
15

The karyotype of one species of primate has 48 chromosomes. In a particular female, cell division malfunctions, and she produces

one of her eggs with an extra chromosome (25). The most probable source of this error would be a mistake in which of the following?A) Mitosis in ber ovary B) Metaphase I of one meiotic event C) Telophase II of one meiotic event D) Telophase I of one meiotic event E) Either anaphase I or II
Biology
1 answer:
Rom4ik [11]3 years ago
6 0

Answer:

E) Either anaphase I or II

Explanation:

Failure of segregation of homologous chromosomes during anaphase I or failure of segregation of sister chromatids during anaphase II leads to the presence of the abnormal number of chromosomes in resultant gametes. In the given example, the egg mother cell with 48 chromosomes (24 pairs) would enter meiosis I but the failure of one pair of homologous chromosomes to segregate from each other followed by normal meiosis II would result in the formation of two gametes with one extra chromosome and two gametes with one less chromosome.

On the other hand, if the nondisjunction occurs at anaphase II of meiosis II, two normal gametes, one gamete with one extra chromosome and one gamete with one less chromosome will be formed. Therefore, nondisjunction at anaphase I or anaphase II would have resulted in the production of eggs with one extra chromosome.

You might be interested in
The dust bowl was the result of a series of dryers drought in the 1930s Where millions of pounds of topsoil were desiccated and
o-na [289]

Answer:

B) Absence of native grasses

Explanation:

The grasses, which acted as a windbreak and whose roots anchored the soil in place, were overgrazed and/or removed to allow for farming. Once a few years of severe drought affected the area, any wind storm was able to blow the topsoil away, rendering the farm land of the Great Plains virtually unusable in many areas. Ground cover is an essential part of sustainable agriculture.

6 0
3 years ago
When an ecosystem loses biodiversity how does it change
shepuryov [24]

Answer:

A decrease in biodiversity causes a decrease in ecosystem stability, because a change to one organism will have a greater impact on the entire ecosystem. With greater biodiversity, the loss of one type of organism could be moderated by the adaptation of other organisms to fill its role.

4 0
3 years ago
This element is solid, forms the backbone of many compounds, and life is based on it. What is it?
Nimfa-mama [501]

Answer:

Carbon is your answer.

7 0
3 years ago
NEED HELP.
gayaneshka [121]

Answer:

Clear cuts are areas from which every tree has been cut down and removed, in a shelterwood system the old stand is removed in a series of cuttings to promote the establishment of an essentially even-aged new stand under the shelter of the old one, and uncut forests are just your average wild woods, left alone and was never bothered with.

for a simpler answer: clear cuts are clear areas, shelter wood are slight cuts, removing some trees for an environment such as parks and backyards, and uncut forests are wild forests that has no trees cut down.

7 0
3 years ago
Read 2 more answers
Which human activities can change the conditions of ecosystem
Artyom0805 [142]

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Various Human Activities That Affect an Ecosystem

Agriculture.

Deforestation.

Overpopulation & Overconsumption.

Plastic Production.

Emission of Carbon Dioxide and Other Greenhouse Gases.

Destruction of the Reefs.

Production of Black Carbon.

Draining Streams/Rivers and Destruction of Critical Freshwater Aquifer Recharge Areas (Water Pollution)

Explanation:

Hope this helps!

6 0
3 years ago
Other questions:
  • Which medical advancements are possible using adult and embryonic stem cells
    9·1 answer
  • What is the name for a characteristic, such as eye color, of an organism?
    6·2 answers
  • . One likely reason for the decreased effectiveness of this chemical is that these bacteria have
    6·1 answer
  • Two physical properties about paper please I need help, please
    9·1 answer
  • What happens to the centrioles during mitosis
    14·1 answer
  • PLEASE HELP THIS IS MY LAST QUESTION
    15·1 answer
  • QUESTION 18
    8·2 answers
  • Which of the following organ systems is involved in the uptake and transport of materials required for life-sustaining processes
    14·1 answer
  • I need help with number two an 3 I already did one brainliest badge
    10·2 answers
  • In what way would the lack of receptors for local paracrine signal molecules affect animal cells?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!