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Sonbull [250]
3 years ago
10

Pretend you are a biologist analyzing mutations occurring in the DNA of an endangered species. In three to five sentences, descr

ibe one type of mutation you might see that would help in the survival of the species and one type of mutation that might harm its survival. Additionally, describe how biologists might use this analysis to promote the survival of the species.
Biology
1 answer:
Delvig [45]3 years ago
3 0

Answer:

Explanation:

Lethal mutations are mutations that are deleterious, its presence in an individual brings about the death of such individual.

Insertion or deletion this a mutation caused by the addition or deletion of a nitrogenous base leading to a shift in the reading frame and a formation of new bases sequence.

Indel mutations can be beneficial at times resulting into variations that is important in an individual. This variation can be explored and use for research.

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What are the lines on a weather map that connect places of equal pressure called?.
zepelin [54]

Answer: Isobars are found ONLY on surface charts. They most commonly connect lines of equal pressure in the units of millibars. High pressure isobars generally occurs with isobars above 1010 mb while low pressure isobars occur with lower than 1010 millibars.

Explanation:

gg

7 0
2 years ago
Normally, this region is imprinted in the sperm, but not the egg. This means that the DNA on the ____________ copy of the chromo
Nostrana [21]

Answer: The DNA on the paternal copy of the chromosome will be methylated at the imprinting center, while the DNA on the maternal copy of the chromosome will not be methylated in this region.

Explanation:

Chromosomes are DNA structures associated with proteins such as histones. They are found in the nucleus of cells and contain genetic information for the development and functioning of an organism. Human beings are diploid, meaning that they possess two copies of each of the 23 chromosomes (a total of 46).

Gametes, which are sex cells such as the sperm (produced by the male) and the egg (produced by the female) that are haploid. This means that they possess only one chromosome of each pair. During fertilization, a male gamete fuses with a female gamete to generate a zygote, which will give rise to a new human being. <u>This new individual will possess half of the genetic material from its father and half from its mother. Thus having a total of 46 chromosomes, 23 from each parent</u>.

Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.

6 0
2 years ago
What are eukaryotes multicellular makes its own food are called?
den301095 [7]
Photosynthesis. the process by which plants make their own food and release oxygen into the air. Kingdom Animalia. eukaryotic. multicellular.
7 0
2 years ago
While observing slides under a microscope, Jack adjusts the microscope’s mirror so that a circle of light can be seen. Which mic
tekilochka [14]

Answer;

Light microscope


Explanation;

A light microscope uses focused light and lenses to magnify a specimen, usually a cell.

Light microscopes may be simple microscopes or compound microscopes.

Simple microscopes uses a single lens to magnify an object and cannot reach high magnification.

Compound light microscopes use two sets of lenses that is; an objective lens and an eyepiece, to produce images.

4 0
3 years ago
Read 2 more answers
A meal consisting of a cheeseburger, large fries, and a chocolate shake provides a total of 1120 kcal. Forty-eight percent of th
nevsk [136]

Answer:

The answer to your question is 436.8 kcal of lipids

Explanation:

Data

Total number of calories = 1120 kcal

48 % carbohydrates

13 % proteins

? % lipids

Process

1.- Sum the percent of proteins and carbohydrates

            48% + 13% = 61 %

2.- Calculate the 61% of 1120

             1120 kcal -----------------  100%

                x            -----------------   61%

                x = (61 x 1120) / 100

                x = 68320 / 100

                x = 683.2 kcal

     683.2 kcal are proteins and carbohydrates

     kcal of lipids = 1120 - 683.2

                          = 436.8 kcal

3 0
3 years ago
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