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March 29, 2024, 03:35:39 am

Author Topic: 🧬Practice Biology Questions; Marking and Feedback!  (Read 10091 times)  Share 

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Coolmate

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Re: 🧬Practice Biology Questions; Marking and Feedback!
« Reply #15 on: June 23, 2021, 05:35:40 pm »
+3
Hey lbryant19 and welcome to the forums! :D

Module 6 - Question 3 - Feedback
"The application of reproductive technologies in plant and animal breeding limits genetic diversity"
To what extent is this statement correct? (6 Marks)


{I think for the first sentence, you should say how humans are able to manipulate reproductive processes. Like, increased scientific understanding and knowledge of reproduction.} Reproductive Technologies in plant and animal breeding processes have been of significant benefit the to the agricultural industry, allowing for higher quality, yield and more genetically consistent produce which are of a commercial benefit to farmers. {A bit too long for the first sentence. I used to be told that in the first sentence you should provide a concise simplified answer to the question.}

Despite this however Conversely, these reproductive technologies can limit genetic diversity through by increasing the genetic homogeneity of a population {Great use of terminology!!!}, seen present in the processes technologies of Artificial Insemination and Artificial Pollination.

Artificial Insemination is the reproduction technology whereby, sperm from a donor male is injected into the female's uterus reproductive tract of a female. {Define what Artificial Insemination is. EG. “Artificial Insemination is the injection of semen into the uterus without the need for sexual intercourse.”}

This is mostly used artificial insemination is commonplace in the cattle industry and its application decreases stock injury. Moreover, this technology is more efficient than natural insemination sexual reproduction and allows allowing farmers to selectively breed desirable traits into cattle for the next generation. Although artificial insemination can be advantageous, like decreasing stock injury, this technology has the potential to decrease genetic diversity. For Example, without inconsistent genomes, chromosomes and alleles will not be able to undergo crossing over, random segregation or independent assortment effectively. {You have to talk about the micro as well as the macro effects} artificial insemination can limit genetic diversity as the use of the sperm of an individual with highly sought after traits to inseminate many female cows decreases the amount of variation in the gene pool as well as the amount of unique alleles within that population. Additionally using the same genome sperm over more than one mating season repetitively can result in a level of inbreeding which further reduced s the genetic variation among cattle and can lead to recessive diseases becoming prevalent in offspring.

Artificial pollination is a reproductive technology conducted occurs when with plants and involves artificially pollinating flowers with a pollen containing desirable genetic traits, is taken and placed on the stigma of a flowering plant. which are intended to be expressed in the crop. {Too long. The HSC markers already know that artificial pollination is a reproductive technology.} This is normally conducted either by hand or plane vectors, like Bees or wind and is widely used in monoculture crops and orchards. The application of this technology reduces genetic variation as it limits and restricts the variance of alleles and unique genetic information in the population. By reducing genetic variation, artificial pollination also leaves crops more susceptible to disease and increase the chance that one strand of a disease will wipe out the entire crop. For Example, if a crop is suited to certain environmental conditions, and those conditions shift, the crop will experience an extinction event. Another limitation of artificial pollination is that people these days breed flowers to be larger and more colourful, but as a consequence, these flowers can begin to lose their scent.

^^ Now add in last sentences to wrap up your response.


ORIGINAL RESPONSE:
Reproductive Technologies in plant and animal breeding processes have been of significant benefit the the agricultural industry, allowing for higher quality, yield and more genetically consistent produce which are of a commercial benefit to farmers. Despite this however, these reproductive technologies can limit genetic diversity through increasing the genetic homogeneity of population, seen in the processes of Artificial Insemination and Pollination.

Artificial Insemination is the reproduction technology whereby, sperm from a donor male is injected into the reproductive tract of a female. This is mostly used in the cattle industry and its application decreases stock injury, is more efficient than natural insemination and allows farmers to selectively breed desirable traits into cattle. Artificial insemination can limit genetic diversity as the use of the sperm of an individual with highly sought after traits to inseminate many female cows decreases the amount of variation in the gene pool as well as the amount of unique alleles within that population. Additionally using the same sperm over more than one mating season can result in a level of inbreeding which further reduced the genetic variation among cattle and can lead to recessive diseases becoming prevalent in offspring.

Artificial pollination is a reproductive technology conducted with plants and involves artificially pollinating flowers with a pollen containing desirable genetic traits which are intended to be expressed in the crop. This is normally conducted either by hand or plane and is used in monoculture crops and orchards. The application of this technology reduces genetic variation as it limits and restricts the variance of alleles and unique genetic information in the population. By reducing genetic variation, artificial pollination also leaves crops more susceptible to disease and increase the chance that one strand of a disease will wipe out the entire crop.

ALL OF THE EDITS:
Reproductive technologies in plant and animal breeding processes have been of significant benefit to the agricultural industry, allowing for higher quality, yield and more genetically consistent produce which are of a commercial benefit to farmers. Conversely, reproductive technologies can limit genetic diversity by increasing the genetic homogeneity of a population, present in the technologies of Artificial Insemination and Artificial Pollination.

Artificial Insemination is the reproductive technology whereby, sperm from a donor male is injected into the females uterus. Artificial Insemination is commonplace in the cattle industry and its application decreases stock injury. Moreover, this technology is more efficient than sexual reproduction allowing farmers to selectively breed desirable traits for the next generation. Although Artificial Insemination can be advantageous, like decreasing stock injury, this technology has the potential to decrease genetic diversity. For Example, without inconsistent genomes, chromosomes and alleles will not be able to undergo crossing over, random segregation or independent assortment effectively. Artificial insemination can limit genetic diversity as the use of the sperm of an individual with highly sought after traits to inseminate many female cows decreases the amount of variation in the gene pool as well as the amount of unique alleles within that population. Additionally using the same genome repetitively can result in a level of inbreeding which further reduces the genetic variation among cattle and can lead to recessive diseases becoming prevalent in offspring.

Artificial Pollination occurs when pollen containing desirable genetic traits, is taken and placed on the stigma of a flowering plant. This is conducted either by hand or vectors, like Bees or wind and is widely used in monoculture crops and orchards. The application of this technology reduces genetic variation as it limits the variance of alleles and unique genetic information in the population. By reducing genetic variation, artificial pollination also leaves crops more susceptible to disease and increase the chance that one strand of a disease will wipe out the entire crop. For Example, if a crop is suited to certain environmental conditions, and those conditions shift, the crop will experience an extinction event. Another limitation of artificial pollination is that people these days breed flowers to be larger and more colourful, but as a consequence, these flowers can begin to lose their scent.

^^ Now add in the last sentences to wrap up your response.



MARK AND GENERAL FEEDBACK:
4/6
Awesome job!👍 This was a good response and would sit around the 4 mark range.

You incorporated a great use of terminology in this response. You also started off each new concept with a definition which was good.

Some more points:
- Just to stay consistent with the quote, I would suggest doing plant first, then animal second (Just so it might be easier for the HSC marker to follow along with your discussion)
- Could you add a statistic from a scientific or scholarly paper, to further support your statements and examples?
- I would suggest at least one positive example and two negative examples too include in your answer

Fantastic!✔
Coolmate 8)
« Last Edit: June 23, 2021, 06:55:32 pm by Coolmate »
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Coolmate

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Re: 🧬Practice Biology Questions; Marking and Feedback!
« Reply #16 on: July 07, 2021, 02:42:47 pm »
+3
Module 7 - Question 2


Question:
Evaluate the effectiveness of Antivirals as treatment strategies for the control of infectious disease (8 Marks)

Goodluck! 8)
« Last Edit: July 07, 2021, 02:45:10 pm by Coolmate »
🤯HSC 2020:🤯
🔥Advanced Maths🔥 - 📚Advanced English📚 - ☄️Physics☄️ - ✌Biology✌ - 🙏SOR 1🙏 - 👨‍💻IPT👨‍💻


🎓University 2021 - 2025:
Bachelor of Science (Biology) / Bachelor of Information Technology (Cyber Security)


👊Need Motivation Click Here!💪         🌴Bio Marking and Feedback!

🧬Biology Guide:
🧪Module 5