Homework : 1) Lethal genes are those that, when present in certain combinations, result in the death of the organism. Examples : a)In fruit flies, the yellow gene controls body color. Homozygous individuals (with two copies of the yellow allele) have developmental defects and usually do not survive. b)In some varieties of corn, there is a lethal gene that, when homozygous, leads to the development of seeds in the tassels. Since tassels don't normally produce seeds, this disrupts the normal development of the plant. c)Lethal allele in coat color in mice. The combination of two copies of a gene for a specific coat color can be lethal. If a mouse inherits two copies of the lethal allele, it won't survive to birth. d) Mendelian Disorders in Humans. Some genetic disorders in humans, when inherited in a homozygous state, can be lethal. For example, Tay-Sachs disease is caused by a mutation in the HEXA gene, and if a child inherits two copies of the mutated gene, it leads to severe neurological problems and early death. 2) Sex-Limited Characters Sex-limited characters are traits expressed exclusively in one sex, even though the gene controlling the trait is present in both sexes. Examples: a) Antlers in Male Deer b) Coloration in Male Peafowl (Peacock) Sex-Influenced Characters Sex-influenced characters are traits influenced by the sex of an individual, leading to different expressions in males and females. Examples: a) Baldness in Human Male : The gene for pattern baldness is influenced by sex hormones. Males may express baldness more frequently than females due to the influence of testosterone. b) Chickens (Feather Color): In some chicken breeds, feather color is influenced by sex of the bird. 3) Useful Mutation : Dr. M.S. Swaminathan, initiated the induction of gamma rays on the wheat variety 'Sharbati Sonora' in the early 1960s. This effort was done to enhance crop improvement and agricultural research in India. Pusa Basmati 1 and Ratna are rice varieties developed through mutation breeding.
@agtmayank70578 ай бұрын
A Keralite watching this class❤
@MeDarish8 ай бұрын
Engane und ee class?kandal full cover akumooo
@krishnasreejith077 ай бұрын
@@MeDarish yes
@samria-le1sl Жыл бұрын
#Day19completed Earlier I used to struggle revising this chapter, but now, its just on my fingertips. Really, Your ability to make complex concepts simple and easy coupled with your engaging teaching style, makes learning with you both enjoyable and knowledgeable at the same time. Thank you Mam
@ManikantaNalla-fi2dj11 ай бұрын
Plz complete the left part
@VIJAYKUMAR-og4fe Жыл бұрын
MAM IT WAS A WONDERFUL SESSION, YOU CLEARED EVERY SINGLE POINT.THANK YOU SO MUCH MAM ❣❣❣
@katari944 Жыл бұрын
Class start at 7:20 min
@New_jeans_never_diesАй бұрын
Tq
@aradhyaaggarwal473 ай бұрын
this lecture was extremely helpful for my IOQJS prep... hope to qualify it will have chhance in class 10m but i want to make this one count
@AK-km9eh Жыл бұрын
Thank you ma’am
@samikshabhadke9487 Жыл бұрын
Thank you so much ma'am for this amazing lecture😊😊😊😊 Thank you so much ma'am for everything you provide us in the form of knowledge and values Homework Sex influenced characters :- autosomal characters which are affected by sex They are dominant in one sex and recessive in another Eg:- Baldness in males Sex limited Character:- these are the traits which are only expressed in one sex and are absent in other. Eg:- milk production in mammalian females It's my kind request will you please start Human Physiology after the completion of 12 std syllabus???
@Itz_balas_unique2 ай бұрын
Tamil Nadians❤
@Wish6099 Жыл бұрын
A is chromosome B is gene mam bcz the last point in b coloumn is about independent assortment
@shravani_perala Жыл бұрын
Mam You are just Awesome❤❤❤ you make it very easy ....thank you so much mam ❤
@studyneet8469 Жыл бұрын
thank you so much for this lecture mam 🎇🎇🎇🎇.🙏🙏
@V...K-l5r Жыл бұрын
WHY WE FEAR ,AMBIKA MAM IS HERE😎🥳
@jeeaspirant_8710 ай бұрын
10:30😊😊😊
@ManikantaNalla-fi2dj11 ай бұрын
Some videos are unavailable why mam
@nawabsworld53 Жыл бұрын
Thnk u Mam... Really My Whole Chapter got Perfectly Revised Bcoz of u👍... U Teachers are really a blessing for Students like Us💯🙏.... Respect For Your Dedication🙏... Allah bless u Mam... A Big Thnk U To Your Efforts🙏🙏.... Will Always pray for u Mam👑...
@nikhithasri Жыл бұрын
It was an amazing session mam,thank you so much for making this chapter interesting and easy!!
@akankhyarath7203 Жыл бұрын
Thank you so much mam for this wonderful session!! As we learnt that in F2 gen all the recessive traits also get expressed in the similar way after attending your cls all the concepts of ncert which I have forgotten a bit got expressed in the hippocampus of my brain😅!! Thank you so much mam❤
@ashwa0695 Жыл бұрын
thanks for the amazing session mam
@Rishabh1737 Жыл бұрын
did mam covered molecular basis also in this session ?
@jnanthini2081 Жыл бұрын
No, it will be separate class
@Darshan-c6n1t10 ай бұрын
Wonderful session mam tqsm mam...🎉🎉
@amrutha250110 ай бұрын
Thank you for the class Mam💌
@mahavidhya4979 Жыл бұрын
Ma'am your lectures are more cute than you 💀 Ambika ma'am
@Royal0805 Жыл бұрын
our trust never cheat us..we trust you mam seriously every single point is clear without any doubts just enjoyed every moment of the class you know where we get confused you know everything about us thankful to have such amazing educator wid us mam loads of love mam....[i was there in the class till end but suddenly my chat section was not working mam thats why i didnt answer i'm extremely sorry mam..] ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
@KruthikaGajula Жыл бұрын
Thanks alottt mam 🙏 way of teaching us its ready good mam❤covering each and every word from Ncert helping us to decode itt mammm!
@priya-cb7pg Жыл бұрын
Thank you mam. Concepts are clear and easy to understand
@BigEmma-qj4xn Жыл бұрын
Thx Mam am from Uganda ❤❤❤❤❤❤❤❤❤❤❤❤❤
@Priyankareddy..UАй бұрын
Where I can get this pdf..?
@soumyavajjal-x7p Жыл бұрын
Wow session ❤❤
@UppalaLikhitha Жыл бұрын
Thank you mam #day 20 completed
@Jayasree-zz2rt Жыл бұрын
Thank you so much mam for this wonderful session
@meitei4946 Жыл бұрын
From where should I get this pdf note mam
@damienrisely26537 ай бұрын
Mam one dought mam the cattle colour example is also similar to thee incomplete dominance mam
@Ayana24606 Жыл бұрын
It is such am amazing session mam... thanks alot mam...
@BabuS-ei1sw Жыл бұрын
Thank you so much for this amazing session mam❤️🔥
@KarthikeyanRamesh Жыл бұрын
lecture went like butter
@RamavathMuyeeАй бұрын
👍👍👍
@RamavathMuyeeАй бұрын
❤❤❤❤❤❤❤❤❤
@V.chaitu Жыл бұрын
Now genetic easy for me mam 🥰 tq so much and love u mam 🥰🥰❤️🔥💥
@soumyavajjal-x7p Жыл бұрын
Love you mam❤❤❤❤😊
@twinklingsisters99379 ай бұрын
😊😊😊😊😊😊
@Vishnudath679 Жыл бұрын
mam your voice is tooo low...............plz increase in next classs