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
Alex Ar [27]
3 years ago
12

I’m stuck, what’s the answer?

Biology
1 answer:
Alik [6]3 years ago
7 0
I think it’s A could be wrong though
You might be interested in
Inheritance patterns cannot always be explained by Mendel's models of inheritance. If a pair of homologous chromosomes fails to
soldier1979 [14.2K]

The question is incomplete as it does not have the options which are:

A) n+1; n+1; n-1; n-1

B) n+1; n-1; n; n

C) n+1; n-1; n-1; n-1

D) n+1; n+1; n; n

Answer:

Option-1

Explanation:

The laws of inheritance were concluded from the result of Mendel's experiment which is based on the fact that gametes are formed. Later research suggested that gametes are formed by the process of meiosis which takes place in two phases and recombination is a characteristic of Meiosis.

If during anaphase I of meiosis I, the alleles fails to separate that is nondisjunction takes place at anaphase I, Then the resulting daughter cells will have unequal distribution of chromosomes.

One daughter cell will receive 1 extra copy of the chromosome while another daughter cell will receive 1 less chromosome therefore ploidy level will be n+1 and n-1.

During meiosis II, 2 more daughter cells will be formed with the same ploidy level therefore in last the meiosis will result in 2 (n+1) and 2 (n-1) cell.

Thus, Option-1 is the correct answer.

4 0
3 years ago
1) What elevation is each of the following points on Map 1? (Remember the contour interval is 10 ft.)
elena-s [515]
A = 70, B = 10, C=20, D=20, E= 30, F=50.
8 0
3 years ago
Read 2 more answers
Scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries. This bioengineered tissu
mrs_skeptik [129]

Answer: The cellular process that enables the cells to grow and develop into tissue is called MITOSIS.

Explanation:

The skin is the largest organ of the body that contains various cells which includes: the epidermal and dermal cells. With the various activities of man, the skin is susceptible to injury through burns.

The healing of the skin, especially injury sustained from burns involves the interaction between the different cell types. Recently, scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries which are grown from living cells.

MITOSIS is the cellular process that enables the cells to grow and develop into tissue. It is also defined as the process by which a cell duplicates into two genetically identical daughter cells.

The process of mitosis occurs in 4 stages; the prophase, metaphase, anaphase, and telophase. The various activities that occurs on these stages brings about the growth and the development of the cells into tissue.

6 0
3 years ago
What would happen if photosynisis stoped happing on earth
Neporo4naja [7]

We can confirm that the absence of photosynthesis on Earth would cause a mass extinction of most of the species on the planet.

<h3 /><h3>Why would the absence of photosynthesis be so harmful?</h3>

The process of photosynthesis is extremely important as it produces oxygen as a byproduct. The absence of this process on Earth would limit the available oxygen in the atmosphere which would at some point be entirely consumed. From then on, most species on the planet would die out as they require oxygen to live. Most plant species would also die off as they use photosynthesis to sustain life.

Therefore, we can confirm that the absence of photosynthesis on planet Earth could be considered an apocalyptic event as it would cause a near-complete extinction of life on the planet.

To learn more about photosynthesis visit:

brainly.com/question/1388366?referrer=searchResults

#SPJ1

3 0
1 year ago
How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged
almond37 [142]

Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

3 0
3 years ago
Other questions:
  • Mom's genotype is Hh and Dad's hair isn't
    11·2 answers
  • What is considered the first symbolic artifact found
    14·1 answer
  • The point beneath the earths surface where rock breaks and an earthquake is produced known as the
    11·1 answer
  • Ecological Levels of Organization:​
    14·1 answer
  • Part of the plant where photosynthesis generally occurs
    15·2 answers
  • How do dung beetles help a carbon atom in animal dung to become part of a carbohydrate molecule within a plant?
    10·2 answers
  • In an experiment designed to measure the distance a golf ball is hit by clubs made of different material, a standardized variabl
    9·1 answer
  • A closed circulatory system is one in which
    10·1 answer
  • A scientist discovers that a strand of DNA is 20% Guanine and 30% Adenine. What percent of
    7·1 answer
  • Molten lava come to the surface and cool forming the first land. true or false
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!