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When corresponding portions of chromatids on two homologous chromosomes change places what has occured?
This is called genetic recombination or crossing over. It results in the exchange of genetic material between homologous chromosomes during meiosis, leading to genetic diversity in offspring.
How do you explain that a chemical reaction occured?
A chemical reaction occurs when reactants undergo a transformation to form new substances, which is evidenced by observable changes such as color change, gas production, temperature change, or the formation of a precipitate. The breaking and forming of chemical bonds between atoms result in this transformation. Additionally, energy is often absorbed or released during the process, indicating a change in the system. These signs collectively confirm that a chemical reaction has taken place.
When traits do not appear according to the expected ratio in offspring what may have occured?
When traits do not appear according to the expected ratio in offspring, it could be due to genetic linkage, incomplete dominance, codominance, polygenic inheritance, epistasis, environmental factors, or genetic mutations. Additionally, errors during meiosis, such as non-disjunction or crossing over, can also lead to unexpected ratios of traits in offspring.
What sensory evidence could be used to argue that a chemical transformation of a substance had occured?
Change in color, odor, temperature, or form; light , heat or sound given off; formation of gasses that often appear as bubbles, formation of precipitate that often sinks to the bottom, the decomposition of organic matter (food rotting), evident creation of a new substance.
When substances are different from the starting substances what occured?
This is a chemical reaction.
____ fossils are used to determine in what time in the past events occured?
Index
Crossing over the chromosomes results in greater genetic variability in offspring than if crossing over had not occured?
true
How you will determine if learning has occurred?
You can determine if learning has occured through evaluation. If there is change in behavior or perhaps if the learning objectives have been met, then there is learning.
Prior to the Civil War a transformation occured in the workforce of the New England textile mills as New England farm girls were replaced by who?
Irish Immigrants
When corresponding portions of chromatids on two homologous chromosomes change places what has occured?
This is called genetic recombination or crossing over. It results in the exchange of genetic material between homologous chromosomes during meiosis, leading to genetic diversity in offspring.
When Fredrick griffith injected mice with a mixture of both heat killed smooth strain bacteria and live rough strain bacteria an unexpected result occured this result was?
The unexpected result was that the previously harmless rough strain bacteria were able to take up genetic material from the heat-killed smooth strain bacteria, becoming virulent. This demonstrated the concept of bacterial transformation and laid the foundation for understanding DNA as the genetic material.
What has most likely occured if a chromosome lacks certain genes?
If a chromosome lacks certain genes, it is likely due to a genetic mutation or deletion event that occurred during DNA replication or recombination. This can lead to genetic disorders or abnormalities depending on the specific genes that are missing.
What happens when Rare allele is in a small population?
The smaller the population the greater the frequency the allele will increase. When the Old Order Amish came to America in 1744 it was a husband and wife. One of them was a carrier for a recessive genetic mutation. As time went on and inbreeding occured because of the small population more and more children were born with the genetic disorder.
If someone is bankrupt can they be sued?
Yes, but generally not for something that occured before they filed....that must be handled by the bankruptcy court - who may - depending on the issue - ask another court to determine liability.
Why did the police talk to the boys individually?
Police talk to group members separately to determine if each individal tell similiar accounts of whatever activivity gas occured. If several individual witnessed a crime it is helpful to separate them becasue the other accounts can easily influence an individuals rememberance, or if a wrongdoing was commmitted it allows the police to notice inconsistencies in each story to determine if the individuals are being truthful about whatever alleged event they are associated with occured and how it happened.
Do indigenous hairless rats exist?
The hairless gene is a genetic mutation that occured naturally, and was bred purposefully. There are indigenous rats in some areas that have the hairless gene, but they are rare since natural selection does not favor a rat being hairless.
How can someone tell when equillibrium in a reaction has occured?
Equillibrium in a reaction has occured when the concentration of compounds remain unchanged.
