18 Questions
What is the term used to refer to the analysis of traits in several generations of a family?
Pedigree analysis
In human genetics, what is the purpose of pedigree study?
Trace the inheritance of a specific trait, abnormality, or disease
Which of the following is true about DNA according to the text?
DNA carries genetic information without alteration from one generation to another
What term is used to describe an alteration or change in genetic material?
Mutation
Which analysis provides an alternative when control crosses are not possible in certain organisms?
Pedigree analysis
What does each feature in any organism correspond to according to the text?
A gene on DNA
What is the basis of heredity?
Inheritance
What is the degree by which progeny differ from their parents called?
Variation
Which branch of biology deals with the inheritance and variation of characters from parents to offspring?
Genetics
During which century was significant progress made in the understanding of inheritance?
19th century
What process involves selectively breeding and selecting organisms with desirable characters?
Artificial selection
What is one of the main causes of variation according to early human understanding?
Sexual reproduction
Why was Mendel's work on inheritance of characters unrecognised until 1900?
Communication was not easy in those days and his work could not be widely publicised.
Which aspect of Mendel's concept was not accepted by his contemporaries?
The concept of alleles blending with each other.
What major advancement enabled the rediscovery of Mendel's results in 1900?
Advancements in microscopy that allowed careful observation of cell division.
Why did Mendel's use of mathematics to explain biological phenomena face resistance?
Using mathematics in biology was a new and unacceptable approach at that time.
Which term did Mendel use to refer to genes in his work?
'Factors'
Why were scientists able to rediscover Mendel's results in 1900?
Advancements in microscopy allowed them to observe cell division more closely.
Explore the science of Genetics, focusing on the inheritance and variation of characteristics in living organisms. Understand why offspring inherit specific traits from their parents and why siblings can look either similar or different from each other. Delve into the fascinating world of Genetics to learn more about the connections between generations.
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