I literally had to learn this for over an hour and understood 1 thing. I just watched a 4 min video and understood everything. Thank you for making this
Thanks Jennifer! My son does not have any "flipped classrooms" this year and we are suffering for it! Your tutorial was very helpful as a refresher and a study guide!
Today I my College professor teach us pedigree building I didn't understand anything. After coming home I search TH-cam and this 4 minutes video clear my all doubts. Thanks mam ..love from India 🇮🇳
Awesome. I have one test left to take for my GED and it is the science. Another student who previously took the science test said a question like this came up on the science test.
This video was so helpful! This topic is going to be on my major Biology test tomorrow, and because of this video I feel much better about it! Thank You for posting this!
It's been a while since I watched this! Nice video! :D This can help me a lot for making some reference charts so I can figure out how the different parts of family are linked together! Thanks for the video!
This video is so amzingly imformaive and it makes Pedigree Charts easy! Thank you so much! :) I learned more from this than any other videos on youtube, my teacher, and my tutor!
Hi Jewel- are you asking about the sex-linked example? Genes can be linked to the Y-chromosome and pass from father to son. X-linked traits can only be passed from an affected or carrier mother to son because the Y must come from the father. Let me know if you have further questions!
@@jenniferdesrochers1640hi ma'am at 3:54 this is an example of x linked dominant. Not autosomal. Lets say male= XY affected female = X'X . Then X'Y (affected male) , XY (normal male), XX' (affected female). Then affected female marries a normal male. Therefore XX and XX'.
3:45 shouldn't it be Y-Linked? because it didn't skip a generation and it only showed up in male (specifically all of the sons), so why was it X-Linked?
Mohammed Aljubury hemophilia is a recessive gene found on the X chromosome that affects the bloods ability to clot normally. As females have XX they will always end up with one functioning X chromosome that codes for correct blood clotting. Females with two dysfunctional X chromosomes result in a natural abortion. As males are XY they may end up with the recessive dysfunctional X chromosome.
OMG i have my science exam tomorrow which is predominantly on biology and ive been struggling so much on this, you made it so easy to understand omg thank you!! I MIGHT PASS NOW!!!
How to identify the older offsprings of generation 1 if their ages are not listed? Is the oldest from left to right on the same row? Since I have a question that ask about the oldest daughter but the generation 1 has two daughter on generation 2.
Fantastic video, thank you. I have one nit-picky comment. Instead of saying that the horizontal line indicates that people are married (1:08) I would have said "This horizontal line is called a marriage line, and it indicates that this couple had children together" because in reality parents are not always married to each other, and for the sake of studying biological inheritance, we don't need to make any assumptions. In any case, great explanation, thanks.
Thank you very much for this video, this is such a great and simple video that gives a wonderful explanation on the topic and you taught it in a way that was very easy for me, Someone who is very much not that knowledgable on the topic to understand. Ik this vids pretty old and u wont see it, But huge thanks from this student in 2022. Ya really helped me out lmao.
Zahra Hussaini i think its becasue females have two X chromosomes, so recessive affects females. And males have one X and one Y, so dominating effects males
hi ma'am at 3:54 this is an example of x linked dominant. Not autosomal. Lets say male= XY affected female = X'X . Then X'Y (affected male) , XY (normal male), XX' (affected female). Then affected female marries a normal male. Therefore XX and XX'.
Thanks for the great video! But AFAIK, the sex-linked diseases are always carried on the X chromosome so there is no male-to-male transmission as a son always inherits his X chromosome from his mother and the Y from his father so he isn’t affected by his father but the mother has to be at least a carrier for him to be affected. Hence, in the last problem the pedigree on the left can’t be a sex-linked disease since the mothers aren’t even carriers and the it’s male-to-male transmitted.
What do you do with someone who you are not sure about? Some people on a pedigree could be Homozygous Dominant or Heterozygous, and you cannot tell by looking at the parents or offspring. Do you half-shade them or not?
So when would we draw somebody as a carrier? I thought that the children who do not show the trait despite coming from a previous generation that is inflicted and then passes it on to a later generation would be a carrier but here they're drawn as simply not having having it at all? Or am I misconstruing the examples?
I LEARNED MORE FROM A 4 MINUTE VIDEO THAN I DID FROM A 45 MINUTE CLASS
+Hannah Liu RIGHT ME TOO
+Hannah Liu My teacher didn't even explain it she was just like "Here's a packet do it over Thanksgiving break"
+Pinkiedoggy2 My teacher did the exact same thing. Sometimes I think teachers can be very ignorant.
+Hannah Liu right same
Me too my teacher is terrible
I literally had to learn this for over an hour and understood 1 thing. I just watched a 4 min video and understood everything. Thank you for making this
Thanks Jennifer! My son does not have any "flipped classrooms" this year and we are suffering for it! Your tutorial was very helpful as a refresher and a study guide!
People like you are the reason people like me pass classes, thank you.
You saved me from reading the textbook! THANK YOU SO MUCH! Please keep making more videos as this was VERY helpful!
Lol 😆 pls go n read the book too
@@sarpongpeterkwaku8337 no
ahh.. finals.
Gabe Daniel LoL same
Welcome to the club
Thank you Mrs Jennifer for making this easier to understand.... I’m taking college genetics Fall 2020...
9 years later and this video is still more effective than school. Thank you!!
l love the way you explaining. I got what l been looking for a week. A short clip with clear information thanks for your help
this by far THE BEST VIDEO in the WHOLE ENTIRE WORLD. I have my AP Biology exam tomorrow and you definitely helped me alot! thank you sooo muchhhh
you don't know how helpful this is!
You have literally saved my life! I've got a biology exam tomorrow and i was not at school when this was taught... Thank You
Today I my College professor teach us pedigree building I didn't understand anything. After coming home I search TH-cam and this 4 minutes video clear my all doubts. Thanks mam ..love from India 🇮🇳
Superb video! I love to watch the videos of native English speakers since they speak fluently with accurate pronunciation.
Awesome. I have one test left to take for my GED and it is the science. Another student who previously took the science test said a question like this came up on the science test.
This is a brilliant way of explanating to students. Well done!
This video was so helpful! This topic is going to be on my major Biology test tomorrow, and because of this video I feel much better about it! Thank You for posting this!
It's been a while since I watched this! Nice video! :D This can help me a lot for making some reference charts so I can figure out how the different parts of family are linked together! Thanks for the video!
Thanks so much for this! Very easy to understand - most helpful video ive seen yet
Thank you this was very helpful! helped refresh my memory before an adv bio final.
So thankful I found this video! It's helped me so much!! I'm now ready for my Bio final on Tuesday!
Very helpful and a quick solution for MQS exam questions thank you!!
This video is so amzingly imformaive and it makes Pedigree Charts easy! Thank you so much! :) I learned more from this than any other videos on youtube, my teacher, and my tutor!
how did father to son transmission occur in x linked can u explain me????
Hi Jewel- are you asking about the sex-linked example? Genes can be linked to the Y-chromosome and pass from father to son. X-linked traits can only be passed from an affected or carrier mother to son because the Y must come from the father. Let me know if you have further questions!
@@jenniferdesrochers1640hi ma'am at 3:54 this is an example of x linked dominant. Not autosomal.
Lets say male= XY affected female = X'X . Then X'Y (affected male) , XY (normal male), XX' (affected female). Then affected female marries a normal male. Therefore XX and XX'.
PHENOMENAL JOB AT EXPLAINING THIS
very good video .... loud and clear!!!
'married'- thats cute
Your a gross person for commenting this five years ago
Jky
0ll
😂😂focus on studying babe😂
You did a great job explaining this.... Shout out to the instructor YOU DA BEST
appreciated, even more useful than what our teacher has been teaching for
a month.
i learned more in this video than i have learned all year thanks
3:45 shouldn't it be Y-Linked? because it didn't skip a generation and it only showed up in male (specifically all of the sons), so why was it X-Linked?
Mohammed Aljubury hemophilia is a recessive gene found on the X chromosome that affects the bloods ability to clot normally. As females have XX they will always end up with one functioning X chromosome that codes for correct blood clotting. Females with two dysfunctional X chromosomes result in a natural abortion. As males are XY they may end up with the recessive dysfunctional X chromosome.
@@jdicey5552 Thanks!! even i had the same doubt.
Oh yes it is a y linked
@@patelrajen7354 it is y-linked. if it was x-linked, then females should have got affected or would had been a carrier.
@@rishimaborah9956nope. In the second generation normal female married normal male (if it was y linked then male would have been coloured)
What a good teacher! I teach science somewhere! I appreciate the way you explain. god bless u
in 4:10 wouldn't the daughter in II be a carrier even if mother is unaffected?
nice to see a video made 10 years ago helped me understand it . Thanks Jennifer. 🤝
OMG i have my science exam tomorrow which is predominantly on biology and ive been struggling so much on this, you made it so easy to understand omg thank you!!
I MIGHT PASS NOW!!!
thanks for doing my science assessment mate!
LMAOO WHAT , why did I learn more in this video then in 3 months worth of zoom classes 😔.
How to identify the older offsprings of generation 1 if their ages are not listed? Is the oldest from left to right on the same row? Since I have a question that ask about the oldest daughter but the generation 1 has two daughter on generation 2.
Thank u jennifer , I had to do a project for sci and u just made a whole lot easier thanku again. Big help.
you are amazing. Helped me at last minute before exam
Crystal clear :) thanks so much!
WOOOOW IM SO AMAZED YOU DISCUSSED IT VERY WELL I UNDERTAND IT NOW
Thank you, my teacher never explained it as thoroughly as this.
Fantastic video, thank you.
I have one nit-picky comment. Instead of saying that the horizontal line indicates that people are married (1:08) I would have said "This horizontal line is called a marriage line, and it indicates that this couple had children together" because in reality parents are not always married to each other, and for the sake of studying biological inheritance, we don't need to make any assumptions.
In any case, great explanation, thanks.
Yes, I know! I made this video for English language learners a while back and had to phrase it less accurately than I wanted.
OMG..I never understood pedigree charts like this before..thank you
So like Pedigree Chart is like fundamentally against pre-marital sexual intercourse?
Thank you very much for this video, this is such a great and simple video that gives a wonderful explanation on the topic and you taught it in a way that was very easy for me, Someone who is very much not that knowledgable on the topic to understand. Ik this vids pretty old and u wont see it, But huge thanks from this student in 2022. Ya really helped me out lmao.
in pedigree on the left the trait should be Y linked as all males are effected not X linked, please correct me if i m wrong
it weird, x-linked affects all males but in x-linked recessive, it affects all females.
Zahra Hussaini i think its becasue females have two X chromosomes, so recessive affects females. And males have one X and one Y, so dominating effects males
yeah!
i agree
i agree, it shouod have been a Y linked sex trait
Thank you Jennifer for making it so simple
thanks for uploading this amazingly explained vidio.
Ucan't imagine that a big doubt of us is tackled , thanks alot again
You are the absolute Best. Can you please do a video on DNA and Chromosomes, mitosis and meiosis. You explain things so clearly . Love you.
Jennifer, you did a great job!
THANK YOU SO MUCH I'VE LEARNED A LOT THROUGH THIS
OH MY GOOSH THANK YOU SO MUUUCH. YOU'RE SO PRETTY
Easy to understand. Do you have more about Pedigree Chart teaching videos ? Thank you Teacher.
I love the way she slides her boards
Wow, I love how you explained this. 👌👌
By 'Probably safe to say', do you mean there's no sure way to tell if its dominant/recessive or even sex-linked/autosomal?
Thank you so much
If they are not married, do you still connect the square and circle???
As long as they mated and had an offspring, you can connect them.
I fell in inlove with you and the lesson style all at once.
What trait could that be😂😂
SOOO HELPFUL. THANK YOU.
Thank you so much mam, I was really struggling in class but this video helps me alot. I appreciate it
Thank you
Great video! So helpful.
I did not know what to do at all from an hour lesson and after watching 1 minute of this video my homework is practically done 😂😂
This one was great tutorial Mam...Thanks!:)) How to make X Linked Dominant Pedigree Chart..?
Thank you Jennifer! Very well explained!
thanks mam
but u can also explain about autosomal recessive and dominant, x-linked recessive and dominant
THANK YOU SO MUCH YOUR VIDEO WAS SO AMAZING, really helpful. keep up the amazing content
hi ma'am at 3:54 this is an example of x linked dominant. Not autosomal.
Lets say male= XY affected female = X'X . Then X'Y (affected male) , XY (normal male), XX' (affected female). Then affected female marries a normal male. Therefore XX and XX'.
Great video and explanation. Thank you!!!
You are welcome!
You make me hungry for more . good job Ms DesRoches
Thanks for the great video!
But AFAIK, the sex-linked diseases are always carried on the X chromosome so there is no male-to-male transmission as a son always inherits his X chromosome from his mother and the Y from his father so he isn’t affected by his father but the mother has to be at least a carrier for him to be affected. Hence, in the last problem the pedigree on the left can’t be a sex-linked disease since the mothers aren’t even carriers and the it’s male-to-male transmitted.
Thank you...it is so useful for MED entrance exams here in INDIA
learned so much i love this video
What are phenotypes?
Phenotypes are the physical characteristics encoded in the genes.
What do you do with someone who you are not sure about? Some people on a pedigree could be Homozygous Dominant or Heterozygous, and you cannot tell by looking at the parents or offspring. Do you half-shade them or not?
So when would we draw somebody as a carrier? I thought that the children who do not show the trait despite coming from a previous generation that is inflicted and then passes it on to a later generation would be a carrier but here they're drawn as simply not having having it at all? Or am I misconstruing the examples?
Awesome Jennifer.
Thanks it was pretty good,I learned a lot in a minute .
Hats of to you. The way you explain it. Thanks
Thanks. We inherit primarily from our grandparents. I know this from biology.
Explained very well.... Thank u
LIFE SAVER!!! Subscribed
Such a good video. Learned this really quick
Thanq for making this video
It really helps to understand pedigree chart
Pefect because I can't grasp anything my professor was saying. Now I understand completely and it took less than 5 minutes.
why you don’t post anymore videos??? you’re so cool and videos are very useful!
Thank you mam I love your explanation and example❤❤👍🏻 I'm clear with the concepts
This was so great! Thank you!
Thank you for this video. This video help me in my homrwork.
This was so helpful!! Thank you so much
why is there a guy named carbs 1:51
Very helpful. Helped me do my science HW
Hey I am from india .....U make vedio easily ....thanku
Thanks for this video it helped me BIG TIME on my bio lab
Excelent, very detailed❤️
Dear Jennifer, I enjoyed your video very much.
Very helpful tutorial video! Thank you!