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ivolga24 [154]
2 years ago
5

Explain how meiosis and fertilization can result in a trait like sickle cell being expressed in offspring when not expressed in

either parent.​
Biology
1 answer:
SpyIntel [72]2 years ago
4 0

Meiosis and fertilization can result in a trait like sickle cell being expressed in offspring because meiosis transfers genetic characteristics from parent to offspring.

<h3>How sickle disease transfers from parents to offspring?</h3>

Sickle disease is inherited when a child receives two sickle cell genes which is one from father and the other from mother. Meiosis and fertilization can result in a trait like sickle cell being expressed in offspring when not expressed in either parent because meiosis transfers genetic characteristics from parent to offspring.

Learn more about meiosis here: brainly.com/question/15475960

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DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their _______ residu
inessss [21]

Answer:

b. methylation.

Explanation:

Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.

Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

Hence, DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their cytosine residues termed methylation.

For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.

4 0
2 years ago
Before viruses can reproduce, they must 
Jet001 [13]

Hello There!

Before viruses can reproduce, they must infect a host cell.

Viruses need a way to enter the body before they can infect a host cell.

7 0
3 years ago
Read 2 more answers
The method is a forecasting method based on the idea that the weather
Anastasy [175]

The correct answer to this open question is the following.

Although there are no options attached, we can say the following.

The method is a forecasting method based on the idea that the weather

on any date will be close to the average of the weather that occurred on that date throughout the years is the Climatology method.

The Climatology method has been used by climatologists to forecast the weather conditions of a region. Scientists and meteorologists have a series of data and statistics collected through the years and they proceed to measure the average temperature. This simple method is based on the patterns of weather from the past to project similar scenarios in the future.

4 0
2 years ago
Describe the structure of and function of microtubes.
steposvetlana [31]

Microtubules are tiny, hollow, bead-like tubular structures that help cells maintain their shape. Along with microfilaments and intermediate filaments, they form the cytoskeleton of the cell, as well as participate in a variety of motor functions for the cell.

3 0
3 years ago
Rocks in continental crust are as old as blank years
timofeeve [1]

Answer: Option (C)

Explanation: The rocks at the continental crust are present since a long time, and the oldest rocks so far encountered from the continental crust is approximately 4.4 billion years old.

          This has been determined by the Uranium-Lead dating method (Ur₂₃₈-Pb₂₀₆).

Oceanic rocks are estimated to be of very recent age i.e about only 180 million years old.

3 0
2 years ago
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