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2 years ago

Instead of developing a head and a tail, an abnormal Drosophila embryo develops two tails. This is most likely due to

Biology

2 answers:

netineya [11]2 years ago

6 0

Answer:

A mutation

Explanation:

This is abnormal and can only be described as a mutation.

prisoha [69]2 years ago

6 0

Answer:

This is most likely due to a mutation in a maternal effect gene.

Explanation:

The genes of maternal effect are the result of a special genetic inheritance that is managed by genes present only in the mother's body, of a certain individual. These genes are responsible for determining some specific conditions in the egg, generating some changes in the individual's genotype and phenotype. In summary, these genes are responsible for contributing to the phenotype of an individual directly related to the mother's genotype.

Like any gene, genes of maternal effect can mutate, generating some phenotypic anomalies. An example of this is the existence of two tails in an abnormal embryo of Drosophila.

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. Consider the following scenarios. State whether the mutation is likely to be passed on to the offspring of the organism. Expla

Shalnov [3]

Answer:

The correct answer is "option a. it is likely it will pass to the offspring; option b. it is not very likely that it will pass to the offspring".

Explanation:

In order that a mutation could be passed to the offspring it is necessary that the affected DNA can be transmitted to the following generation. A single bacteria that contains a positive mutation in its DNA is likely to pass its mutation to the offspring since it multiples by binary fission. On the other hand, a skin cell most likely will not pass its mutation to the offspring since a skin cell is not involved in the organism reproduction, such as a sexual cell.

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3 years ago

Males of some species have proteins in their ejaculate that cause the female to be less attractive to other males for some perio

iVinArrow [24]

Answer:

C) male-male competition; sexual conflict and antagonistic coevolution

Explanation:

Male-male competition happens when two males of a species fight for the opportunity to mate with a specific female.

7 0

3 years ago

Which of the following describe smooth muscle tissue?a. Uninucleate, nonstriatedb. Multinucleate, striatedc. Multinucleate, nons

Blababa [14]

Answer:

a. Uninucleate, nonstriated

Explanation:

Smooth muscle tissue is composed of smooth muscle cells that are spindle-shaped with a single nucleus. Smooth muscles line the walls of hollow organs such as urinary bladder, uterus, stomach, intestines but also arteries and veins and the tracts of the respiratory, and reproductive systems. Smooth muscles are under involuntary control, meaning that their contraction is unconscious.

6 0

3 years ago

What evidence did Mendel find that supported his law of independent

inn [45]

Answer:

It's B

Explanation:

Law of independent assortment stated that individual heredity factors assort independently during gamete production. the evidence that Mendel find that supported his law of independent assortment is : different traits are passed on independently of each other

3 0

3 years ago

PLEASE HELP WITH THESE <br><br>just say which number you answered

zubka84 [21]

I got two, but I could be wrong.

6 0

3 years ago