Question

Portions of the genome that aren’t subject to natural selection can be assumed to evolve neutrally. These parts of the genome can be used to _____________.

Estimate divergence time for two species (molecular clock).

Find instances of epistatic conflict.

Estimate the impact of parasitism on the population.

Determine diversity of phenotype.

A mutation results in a duplicated copy of a gene. The original gene and the duplicated version are descended from the same ancestral gene and are referred to as _______.

paralogs

xenologs

conflicting isochores

neo-haplotypes

At an early stage if an embryo is divided into two roughly equal halves each half can complete development and become a complete organism. This demonstrates that the cells at that early stage are ____________.

semipotent

pluripotent

unipotent

omnicapable

Which of the following is a pronounced example of the power of heterochrony to effect drastic morphological change of the adult form?

The difference between Homo erectus and Praeanthropus afarensis.

Paedomorphism via neoteny in the axolotl (Mexican salamander).

Aggregation of individual amoeba like cells into a reproductive “slug” in the slime molds.

The equal number of individuals from either sex in the populations of most eukaryotes.

In species that have them, the Hox genes are usually found right next to each other in the genome. What is this arrangement called?

synteny

colinearity

xenology

conflicting isochores

neo-haplotypes

Homeotic transformations require the coordinated action of multiple changes in both the regulation and coding sequence of different toolkit genes.

True

False

..

Answer 1

.So, here are the answers to your question.

QUESTION 1

If part of the genome is not subjected to natural selection this may result in the increase for their frequency to evolve

which certainly results in the diversity of the phenotype

option 4 is the answer

QUESTION 2

It is Paralogs.

These are referred to as the gene copies which are produced by the duplication with the same genome.

QUESTION 3

omnipotent cells

These are the most powerful cells. The y have the capacity to differentiate into tissues from the placenta. They can generate a fully functional organism

QUESTION 4

option 2 is the answer

Heterochrony is basically a change in the timing of the development of certain processes. The timing may get delayed for a certain period which obviously results in body development. This is to be noted that it is not permanent.

Hence neoteny ends in paedomorphism which is a kind of heterochrony.

QUESTION 5

There is a significant feature of the Hox gene is their arrangement they are arranged in such a way that the anterior and the posterior axis of the body implies a particular Hox gene code which is unique to the identity of an individual during the development. This entire property can be referred to as the colinearity

QUESTION 6

It is TRUE

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