Description

how do variations occur in an offspring ?

Here are some links that might be useful to you:

https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:inheritance-and-variation/x0c5bb03129646fd6:reproduction-and-genetic-variation/a/sexual-reproduction-and-genetic-variation

https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:inheritance-and-variation/x0c5bb03129646fd6:reproduction-and-genetic-variation/a/sexual-reproduction-and-genetic-variation
Sexual reproduction and genetic variation – Khan Academy
Fertilization is the fusion of gametes from two parents. Fertilization leads to new, diploid offspring. Sexual reproduction results in genetic variation, or genetic differences, between parents and offspring. Offspring inherit one set of chromosomes from each parent. So, an offspring has a mixture of chromosomes (and alleles) from its two parents.

https://bio.libretexts.org/Bookshelves/Human_Biology/Book:_Human_Biology_(Wakim_and_Grewal)/07:_Cell_Reproduction/7.6:_Genetic_Variation

https://bio.libretexts.org/Bookshelves/Human_Biology/Book:_Human_Biology_(Wakim_and_Grewal)/07:_Cell_Reproduction/7.6:_Genetic_Variation
7.6: Genetic Variation – Biology LibreTexts
Sexual reproduction results in infinite possibilities of genetic variation. In other words, sexual reproduction results in offspring that are genetically unique. They differ from both parents and also from each other. This occurs for a number of reasons. When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can .

https://www.khanacademy.org / science / high-school-biology / hs-evolution / hs-evolution-and-natural-selection / a / hs-evolution-and-natural-selection-review

https://www.khanacademy.org / science / high-school-biology / hs-evolution / hs-evolution-and-natural-selection / a / hs-evolution-and-natural-selection-review
Evolution and natural selection review (article) | Khan Academy
Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations. Random mutations are the initial cause of new heritable traits.

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book:_Introductory_Biology_(CK-12)/02:_Cell_Biology/2.39:_Genetic_Variation

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book:_Introductory_Biology_(CK-12)/02:_Cell_Biology/2.39:_Genetic_Variation
2.39: Genetic Variation – Biology LibreTexts
Sexual reproduction results in infinite possibilities of genetic variation. In other words, sexual reproduction results in offspring that are genetically unique. They differ from both parents and also from each other. This occurs for a number of reasons. When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can .

https://www.bbc.co.uk/bitesize/topics/zpffr82/articles/z6s26yc

https://www.bbc.co.uk/bitesize/topics/zpffr82/articles/z6s26yc
What are causes of variation? – BBC Bitesize
gene A small section of DNA that gives a characteristic. during reproduction. This is. inherited. close. inheritance The passing of characteristics determined by genes from parents to offspring …

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/4:_Evolutionary_Processes/18:_Evolution_and_the_Origin_of_Species/18.2:_Formation_of_New_Species

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/4:_Evolutionary_Processes/18:_Evolution_and_the_Origin_of_Species/18.2:_Formation_of_New_Species
18.2: Formation of New Species – Biology LibreTexts
When variations occur within a species, they can only be passed to the next generation along two main pathways: asexual reproduction or sexual reproduction. … Many species are similar enough that hybrid offspring are possible and may often occur in nature, but for the majority of species this rule generally holds. In fact, the presence in …

https://www.youtube.com/watch?v=JGxHFnCvIjs

https://www.youtube.com/watch?v=JGxHFnCvIjs
How do variations occur in offsprings? Explain. – YouTube
26 oct. 2022How do variations occur in offsprings? Explain.📲PW App Link – https://bit.ly/PW_APP🌐PW Website – https://bit.ly/PW_APP📌 PHYSICS WALLAH OTHER CHANNELS :🌐 …

https://learn.genetics.utah.edu/content/change/reproductionvariation

https://learn.genetics.utah.edu/content/change/reproductionvariation
Reproduction & Variation – University of Utah
Genes from the two viruses combine to make offspring with new combinations of genes. Mixing in asexually reproducing organisms happens less often than in organisms that reproduce sexually. But it still makes for a lot of variation. When it comes down to it, life of all types has ways to mix things up.

https://openstax.org/books/biology-ap-courses/pages/19-2-population-genetics

https://openstax.org/books/biology-ap-courses/pages/19-2-population-genetics
19.2 Population Genetics – Biology for AP® Courses | OpenStax
Only those variations that are encoded in an individual’s genes can be passed to its offspring and be a target of natural selection. … Another scenario in which populations might experience a strong influence of genetic drift occurs when some portion of the population leaves to start a new population in a new location or gets separated by a …

https://byjus.com/question-answer/how-are-variations-introduced-in-the-offsprings

https://byjus.com/question-answer/how-are-variations-introduced-in-the-offsprings
How are variations introduced in the offsprings? – BYJU’S
Q. Characterstics that are transmitted from parents to offsprings during sexual reproduction show : (a) only similarities with parents. (b) only variations with parents. (c) both similarities and variations with parents. (d) neither similarities nor variations with parents. Q. Variations in offspring are mainly introduced as a result of:
lesoutrali bot