Gamma rays
Explanation:
In a nuclear reaction product that has the least mass is gamma rays.
There are three types of ionizing radiation produced in nuclear reactions. They are:
- Alpha particles
- Beta particles
- Gamma rays
Alpha particles are heaviest followed by beta particles. Gamma rays have no mass.
- A gamma ray is a form of electromagnetic radiation
- It has no charge and mass
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Answer:
Island isolation promotes allopatric speciation.
Explanation:
Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations reach a high level of genetic divergence. They can no longer interbreed which means they become two different species (speciation).
New populations evolve as result of mutation, genetic drift and natural selection.
For example, Galapagos finches are isolated from others by the ocean (geographic isolation). Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.
Answer:
Sex linked genes are found on X and Y gene only which is unlikely characteristics of linked gene being found on any gene other than sex gene X and Y . Their inheritance pattern is also different
Explanation:
Similarity
a) Both the sex linked and linked genes are carried along with parent gene (to which they are linked) to the new offspring.
b) Can be found on any gene
Difference
a) Linked genes have no association with the chromosomal sexuality of an individual or type of gene to which they are associated while the sex linked gene depend and are transferred based on the chromosomal sex of an individual and along with the specific gene to which they are linked only. The X linked gene will be transferred only by female or male X gene and not the Y gene.
b) Only found on the X and Y gene
Answer: The statement that water becomes denser when it freezes is not a property of water.