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SIZIF [17.4K]
3 years ago
14

Microtubule structures that help separate the chromosomes during mitosis

Biology
1 answer:
Goryan [66]3 years ago
7 0

Answer:

O fuso mitótico

Explanation:

fuso é uma estrutura feita de microtúbulos, fibras fortes que são parte do "esqueleto" da célula. Sua função é organizar os cromossomos e movê-los durante a mitose. O fuso cresce entre os centrossomos a medida que eles se separam.

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3 years ago
Which components of the atom are found outside of the nucleus?
Phantasy [73]
Electrons are found outside the nucleus.
7 0
3 years ago
Consider the results of a testcross performed on an organism heterozygous for 2 genes. For each scenario of gene arrangement for
emmasim [6.3K]

Answer:

Following are the answer to the given points:

Explanation:

  • Unlinked - Nonrecombinant progeny (50%), recombinant progeny (50%)
  • Fully related genetics - 100% non-recombining genetic progeny (parental)
  • Incomplete connection of genes > 50% non-recombinant progeny < 50% crossover offspring. Connected genes

Mendel had established some essential concepts concerning inherited mechanisms such as the patterns of transmission of genes to offspring depending on their chromosomal placements. This same notion of linkage was offered to describe the pattern of the legacy of alleles on its chromosomal position.

Two different chromosomes have specific isoforms – for example, A and B which have two different features. As just a result, 50 percent of gametes are parental throughout type AB, and the other 50 percent of a recombinant in zygotes are quasi (aB & Ab) and 50 percent of the progenies that outcome from this mixture of gametes, therefore, are nonrecombinant in 50% and the cloned in 50 percent of the genetic makeup AaBb.

With two fully linked genes, e.g they exist on the very same chromosome and no cross-over occurs, all gametes are similar to parent types (AB and ab), like they do not split themself nor are diverse and culturally produced (nonrecombinants).

3 0
3 years ago
A pregnant mouse is exposed to high levels of a chemical. Many of the mice in her litter are deformed, but when they are interbr
MatroZZZ [7]

Answer:

The correct answers are- a) In the deformed mice, somatic cells but not germ cells were mutated and  d) The toxic chemical affects development but is not mutagenic.

Explanation:

Mutation in the somatic cells do not pass in the offsprings and the only mutation in the germ cells can pass to the offspring because offspring are produced by the fertilization between different germ cells. Somatic cell mutation can only cause deformation in individuals but their offspring will be like normal offsprings.

The other cause may be that the toxic chemical used don't cause any mutation but just affect the development of mice so in this case genetic material will remain in normal state in deformed mouse and they will able to produce normal offsprings. So the right answer is a and d.

4 0
3 years ago
Read 2 more answers
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