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
Hoochie [10]
3 years ago
14

The random alignment of maternal and paternal homologous chromosomes during metaphase I is one of the ways genetic variability a

mong gametes comes about. For example, it is possible for an organism with 4 pairs of homologous chromosomes to produce gametes with up to 16 different combinations of maternal and paternal chromosomes. In the case of humans with 23 pairs of chromosomes, there are over 8 million possible combinations. How many possible combinations of maternal and paternal chromosomes are possible in the gametes of an organism with a diploid number of 16 chromosomes ?
Biology
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

256 possible combinations.

Explanation:

Homologous chromosomes consist of one maternal chromosome and one paternal chromosome that pair up during meiosis. They have the same genes in the same loci, but not alleles.

During metaphase I they line up in a random order, this means there are different combinations of maternal and paternal chromosomes for each gamete.

There are 2 alternatives for each pair of homologous chromosomes. We calculate then the number of gametes with different chromosomic combinations as 2^n, being n the number of homologous pairs or haploid number of an organism.

For an organism with 4 pairs of homologous chromosomes: 2^4 = 16

For humans with 23 pairs of chromosomes: 2^23 = 8,388,608‬

For an organism with a diploid number of 16 chromosomes, we have 8 pairs of homologous chromosomes (haploid number, one set of chromosomes):

2^ 8 = 256 possible combinations of maternal and paternal chromosomes.

You might be interested in
Please help! Question>>>>>> Where is aggregate generally found?
riadik2000 [5.3K]

Aggergate is usually found in:

Floodplains

Alluvial fans

Mines

6 0
3 years ago
Read 2 more answers
Which term describes all scavengers?
mart [117]
Consumers because scavengers hunt for food b
5 0
3 years ago
Do we have to be searched to find truth?
Anuta_ua [19.1K]

Answer: Yes

Explanation: In order to go to the right end you must be searched first anyone tells you otherwise.

7 0
3 years ago
Read 2 more answers
Which cells in the body are targeted by HIV?
Sindrei [870]
T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.
6 0
3 years ago
Read 2 more answers
The table below shows the elements that mainly comprise each of the four layers of Earth: Elements in Layers Layer Main Elements
yanalaym [24]

Layer that is 0.2 to 1.1 percent of Earth's total diameter is the thinnest layer of the Earth- Crust.

So, the correct answer is: oxygen and silicone. The crust consists of tectonic plates (in relative motion one from another) and has 5–70 km (~3–44 miles) in depth. The most abundant elements of this layer are: oxygen-46.6 percent by weight; silicon-27.7 percent; aluminum-8.1 percent; iron-5 percent.


6 0
3 years ago
Read 2 more answers
Other questions:
  • Which process in the water cycle occurs when water absorbs heat energy​
    10·1 answer
  • Why do hydras use its stinging cells?
    5·2 answers
  • What is another name for observations
    14·2 answers
  • What is an important trait or skill for a scientist to have?
    9·2 answers
  • Which of the proteins are directly responsible for ensuring that eukaryotic DNA is replicated precisely once in each round of re
    5·1 answer
  • After leaving the kidney where does the filtrate go?
    9·2 answers
  • Explain the significance of plant collections in the 18th century.
    13·1 answer
  • if a small pond had fish in it and algae was its only producer and the algae disappeared, what would happen to the fish?
    11·1 answer
  • The vegetation in a region is removed in an area so that electrical lines from a new power plant can be built. What is a likely
    13·1 answer
  • Where on the earth can you find marsupial mammals?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!