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Why do offspring resemble their parents more than random other individuals?
Wiki User
∙ 11y ago
due to DNA exchange of parents
Wiki User
∙ 11y ago
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What type of reproduction causes the most diversity in offspring?
Sexual, as opposed to asexual (budding, dividing). This is because sexual reproduction involves the combining of the parents' genomes in random ways, which all produce different results and thus different offspring.
What are the sources of variation in the offspring produced by sexual reproduction?
Random assortment & crossing-over
Which process usually results in offspring that exhibit new genetic variations?
Assuming you mean genetic traits different from the parents and likely novel in the gene pool, the answer is random mutation.
Why are the offspring of the same two parents genetically different?
offspring from one is asexual and from two is sexual you can look this up on Google so stop being lazy also... offspring from one is identical to the parent offspring from two is different because the sperm contains DNA and so does the egg and the DNA mix to form new DNA that combines male (sperm) and female (egg) DNA
The calculation of offspring includes only variation resulting from?
crossing over, random fertilization, and an independent assortment of chromosomes
Why are two cells resulting from meiosis 1 not identical?
Sort of, yes. Meiosis gives offspring a random mixture of their parents genes. The likelihood of multiple offspring having the same random mixture is very small, but very similar mixtures happen frequently and result in strong family resemblance. Offspring aren't identical to each other because they get these different mixtures. If each child had DNA identical to one of their parents then there would be a 50% chance for two children born to the same parents to look exactly the same.
Should you choose mates for animals for specific reasons?
Yes, the idea is to produce offspring that are better than the parents. Random mating or mating inferior animals does not lend itself to breed improvement.
What are the 4 key principles of natural selection?
1. Overproduction - more offspring are born than survive 2. Genetic Variation - there is variation in the population 3. Struggle to Survive - organisms with suitable variations will survive and reproduce 4. Differential Reproduction - suitable variations are passed on to offspring
What type of reproduction causes the most diversity in offspring?
Sexual, as opposed to asexual (budding, dividing). This is because sexual reproduction involves the combining of the parents' genomes in random ways, which all produce different results and thus different offspring.
What does a random distribution of individuals in a population most likely result from?
A random distribution of individuals in a population typically results from factors such as random mating, random dispersal, and random environmental conditions. This can lead to a lack of distinct patterns or clustering in the distribution of individuals within a given area.
Which of the following was not part of Darwin's theory of natural selection?
A: More offspring are produced within a population of a species than can generally survive. B: More offspring are produced within a population of a species than can generally survive. C: Some individuals possess features that increase their probability to survive compared to individuals lacking these features. D: Some individuals possess features that increase their probability to survive compared to individuals lacking these features Individuals in a population of a species vary in many ways Individuals in a population of a species vary in many ways Changes in the environment cause beneficial mutations.
Adaptation and change is dependent upon mutations and random genetic combinations passed to offspring?
no
What are the sources of variation in the offspring produced by sexual reproduction?
Random assortment & crossing-over
Why are there variations in organisms produced by the same parents?
grjruiyhn
Why are desivable traits not always passed to offspring?
Fertilization involves a random selection of alleles which are combined.
Which process usually results in offspring that exhibit new genetic variations?
Assuming you mean genetic traits different from the parents and likely novel in the gene pool, the answer is random mutation.
Why are there variations in traits?
Gametes are made by meiosis, in which chromosomes make an exact copy of themselves. Remember, there are 2 chromosomes (1 from mum, 1 from dad) in each pair and these chromosomes swap genes randomly, which causes variation in gametes so offspring are different to each other and their parents. Fertilisation is also a random process - there are thousands of egg and sperm cells which could form a zygote and it is random which egg and sperm cells actually do. Offspring may also be born with a mutation (could be beneficial or harmful) which causes variation.
