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3 years ago

Describe some possible effects of large scale mutations.

2 answers:

8 0

With large-scale types of mutations, large sections of chromosomes are changed, or sections of a chromosome may be duplicated. This may result in extra copies of a gene that may “amplify” the effects of that gene. Conversely, large sections of a chromosome may be deleted, resulting in the loss of entire genes.

PilotLPTM [1.2K]3 years ago

5 0

Effects of large-scale mutations are more obvious than small-scale mutations. For instance, duplication of genes in large-scale mutations would lead these genes to be overexpressed. Likewise, deletions in genes result to incompletion. In this kind of mutation, “fusion protein” may be created by two combined genes and gives significant cell growth. This can lead to complications like cancer.

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1 pts

Anni [7]

Do you have a picture ?

3 0

3 years ago

Interpret the Punnett square. A Punnett square with four rows and four columns. The first row is labeled big-A, big-B. The secon

Naddika [18.5K]

Answer:

The genotypes shown represent gametes. False

One of the possible offspring genotypes is AABB. True

The parent genotypes are ABAbaBab×ABAbaBab. True

This cross shows two alleles for two traits. True

The gametes are diploid and the offspring are diploid. False

The genotypes shown are correct for a dihybrid cross. True

Explanation:

║ AB ║ Ab ║ aB ║ ab

AB║ABAB ║ ABAb║ABaB║ABab

Ab║ AbAB║ AbAb ║AbaB║Abab

aB║aBAB ║ aBAb ║aBaB║aBab

ab║abAB ║ abAb ║abaB ║abab

Drawing the Punnett square we can deduce that the genotypes shown do not represent gametes because there are more than 2 pairs of chromosomes.

As shown in the second column second row of the Punnett square one of the possible genotypes is AABB, it is distributed different (ABAB) but it is the same possible genotype.

The parents' genotypes are the ones that are written in the first columns and first row, they coincide with the ones in the statement.

A dihybrid cross shows the cross between two genes that have different traits.

The gametes are always haploid and the offspring are diploid because the two gametes come together.

7 0

3 years ago

What does natural selection favor?

ratelena [41]

Answer:

The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.

The reason that natural selection is important is that it's the central idea, stemming from Charles Darwin and Alfred Russel Wallace, that explains design in nature. It is the one process that is responsible for the evolution of adaptations of organisms to their environment.

Explanation:

hope this helps

3 0

3 years ago

How do earthquakes impact ecosystems? pls help me!!!!!! :)

vitfil [10]

Answer:

Earthquakes can affect the ecosystem in different ways. They mostly damage a lot of things on ground, but can cause massive tsunamis in sea. Earthquakes can also move land around and change the ecosystem, and carry diseases to other places.

Explanation:

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if so.. plz mark BRAINLIST!!

thx =)

5 0

3 years ago

What is the correct pathway for air entering the human respiratory system?

SpyIntel [72]

Air enters into the body through nose and proceeds to pharynx or windpipe afterwards it proceeds down and reaches to larynx the voice box and continue to proceed to trachea which is surrounded by rings so that by air pressure it cannot be collapse from there a divides into two side left and right bronchus then it conducted towards bronchioles which is the pathway to alveoli at last it reaches to its Final Destination (not that movie....hahah) which is alveoli where the exchange of gases takes place

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3 years ago