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Andreyy89
3 years ago
15

Describe the genetic mutations that you think occurred in the cancer cells that were responsible for the phenotypic differences

between the normal and cancercells you observed. The normal cells were organized, normal shape, and the cancerous cells were all over the place stacked together, multiple nuclei in one cell for some and a lot of them in on area. I think the genetic mutation that occurred would be with the gene that affects cell division and the tumor suppressor gene.
Biology
1 answer:
ruslelena [56]3 years ago
5 0

ANSWER:

Most types of cancer are believed to begin with a random genetic mutation. This is followed by mutations, which endow the cancer cells with properties allowing them to grow without normal controls to become a tumor.

Mutation is any change in the DNA sequence of a cell. Mutations may be caused by mistakes during cell division, or they may be caused by exposure to DNA-damaging agents in the environment.

Genetic Mutations that lead to cancer cell formation can occur in two forms:

1. GROWTH-PROMOTING GENES are commonly mutated in cancer cells, becoming SUPER-ACTIVE and producing cells that are too strongly stimulated by growth receptors.

2. Mutations can INACTIVATE the genes that suppress cell proliferation or those that signal the need for apoptosis. These genes are known as TUMOR SUPPRESSOR GENES.

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Assuming that the allele for red flower colour in the plant is R and the allele for white flower colour is r, true breeding red and white flower colour plants will have the genotype RR and rr respectively. In heterozygote state (Rr), the phenotype is usually pink, showing that the R allele has incomplete dominance over the r allele.

<em>Hence, there is no way for plant breeders to develop a true-breeding pink-flowered snapdragon. without some genetic manipulations/mutation.</em>

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