Chapter 14 - Biology
Complete each question with a word to complete the statement, a true or false notation or by checking the answer that best answers the question. Each question is worth 5 points
Questions and Answers
- 1.
Why are biotechnology companies interested in genetic information?
- 2.
Please describe the method for studying and assessing information that best works for you.
- 3.
A picture of a cell's chromosomes grouped in pairs is called ____________________________
Explanation
A picture of a cell's chromosomes grouped in pairs is called a karyotype. It is a visual representation of an individual's chromosomes, arranged in pairs according to their size, shape, and banding pattern. Karyotyping is commonly used in genetic testing to identify chromosomal abnormalities and genetic disorders.Rate this question:
- 4.
A chart that shows how the sex chromosomes segregate during meiosis is called a ___________________________
Explanation
A chart that shows how the sex chromosomes segregate during meiosis is called a Punnett square. It is a tool used in genetics to predict the possible combinations of alleles that can be inherited from two parents. The Punnett square helps to determine the probability of certain traits or genetic disorders being passed on to offspring.Rate this question:
- 5.
A small change in the DNA of a single gene affects the structure of a protein, causing a serious genetic disorder.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A small change in the DNA of a single gene can indeed have a significant impact on the structure of a protein. Proteins are composed of amino acids, and the sequence of these amino acids is determined by the DNA sequence of the gene that codes for the protein. Any alteration in the DNA sequence can lead to a change in the amino acid sequence, which in turn affects the folding and function of the protein. This can result in a genetic disorder, as the protein may no longer be able to perform its normal biological role. Therefore, the statement is true.Rate this question:
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- 6.
2 of the 46 chromosomes are called the ________________
Correct Answer
sex chromosomes, SEX CHROMOSOMESExplanation
The two chromosomes out of the total 46 chromosomes in a human are referred to as sex chromosomes. These chromosomes determine the sex of an individual, with females having two X chromosomes (XX) and males having one X and one Y chromosome (XY). The term "sex chromosomes" is used to specifically highlight these two chromosomes and their role in determining the biological sex of an individual. The repetition of "SEX CHROMOSOMES" in the answer emphasizes the importance of these chromosomes in sexual differentiation.Rate this question:
- 7.
Males have on X chromosome. Thus, all X-linked alleles are expressed in males, even if they are a ______________________ trait
Correct Answer
recessiveExplanation
In males, there is only one X chromosome. Therefore, if a male inherits an X-linked recessive allele, it will be expressed because there is no second X chromosome to mask or suppress its expression. This is why all X-linked alleles are expressed in males, even if they are recessive traits.Rate this question:
- 8.
An example of a sex-linked disorder where blood clotting is affected . . .
- A.
Down Syndrome
- B.
Sickle-Cell
- C.
Hemophilia
- D.
Being a calico cat
Correct Answer
C. HemopHiliaExplanation
Hemophilia is a sex-linked disorder where blood clotting is affected. It is caused by a deficiency in certain clotting factors, which are proteins involved in the clotting process. This disorder is more common in males because the gene for hemophilia is located on the X chromosome. Since males have only one X chromosome, they are more likely to inherit the disorder if their mother carries the gene. Females can also be carriers of the gene and pass it on to their children. People with hemophilia experience prolonged bleeding and are at a higher risk of excessive bleeding from injuries or surgeries.Rate this question:
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- 9.
Colorblindness is typically found in females.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Colorblindness is typically found in males, not females. This is because the genes responsible for color vision are located on the X chromosome. Males only have one X chromosome, so if it carries the colorblindness gene, they will be colorblind. Females, on the other hand, have two X chromosomes, so even if one carries the colorblindness gene, the other X chromosome can compensate and provide normal color vision. Therefore, colorblindness is more common in males than in females.Rate this question:
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- 10.
______________________ is when homologous chromosomes fail to separate.
Correct Answer
nondisjunctionExplanation
Nondisjunction is a term used to describe the failure of homologous chromosomes to separate during meiosis. This can occur during either the first or second division of meiosis. When nondisjunction happens, it can result in an abnormal number of chromosomes in the resulting gametes, leading to genetic disorders such as Down syndrome, Turner syndrome, or Klinefelter syndrome.Rate this question:
- 11.
An example of when homologous chromosomes fail to separate.
- A.
Turner's Syndrome
- B.
Down Syndrome
- C.
Klinefelter's syndrome
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The given answer "All of the above" is correct because all three conditions mentioned (Turner's Syndrome, Down Syndrome, and Klinefelter's Syndrome) involve the failure of homologous chromosomes to separate properly. In Turner's Syndrome, there is a missing or incomplete X chromosome in females, leading to various developmental issues. Down Syndrome is caused by the presence of an extra copy of chromosome 21, resulting in intellectual disabilities and physical abnormalities. Klinefelter's Syndrome occurs in males with an extra X chromosome, leading to infertility and other physical and developmental challenges. Thus, in all these conditions, there is a failure of proper separation of homologous chromosomes.Rate this question:
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- 12.
DNA evidence is not reliable enough to be used to convict criminals.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
DNA evidence is considered to be one of the most reliable forms of evidence in criminal investigations. It is widely used in courts around the world to convict criminals due to its accuracy and ability to link individuals to crime scenes. DNA analysis has advanced significantly over the years, and the chances of a false positive or false negative result are extremely low. Therefore, the statement that DNA evidence is not reliable enough to be used to convict criminals is false.Rate this question:
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- 13.
Gene therapy is the process of changing the gene that causes a genetic disorder
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Gene therapy is the process of changing the gene that causes a genetic disorder. This involves introducing a healthy copy of the gene into the cells of an individual to replace or correct the faulty gene. By doing so, gene therapy aims to treat or cure genetic disorders by addressing the root cause at the genetic level. Therefore, the statement "Gene therapy is the process of changing the gene that causes a genetic disorder" is true.Rate this question:
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- 14.
Biologists search the volumes of the human genome using sequences of ________________________________
Correct Answer
DNA basesExplanation
Biologists search the volumes of the human genome using sequences of DNA bases. This is because DNA bases, which include adenine, thymine, cytosine, and guanine, form the building blocks of DNA. By analyzing the specific sequence of these bases, biologists can identify and study genes, mutations, and other important genetic information within the human genome. This allows them to better understand genetic diseases, inheritance patterns, and other aspects of human biology.Rate this question:
- 15.
What changes could be made to the human genome by manipulating human cells? height, hair color, eye color, sex, blood group etc
- A.
Eye color
- B.
Hair type
- C.
Height
- D.
Number of black and orange spots
- E.
Blood Group
Correct Answer(s)
A. Eye color
B. Hair type
C. Height
E. Blood GroupExplanation
The human genome can be manipulated to change various traits such as eye color, hair type, height, and blood group. This can be achieved through genetic engineering techniques that modify specific genes responsible for these traits. For example, altering the expression of genes that control the production of melanin can result in changes in eye color and hair type. Similarly, manipulating genes involved in skeletal growth can influence height. Blood group can also be modified by targeting genes responsible for the expression of specific antigens on red blood cells.Rate this question:
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- 16.
A diagram that shows family relationships is called a ___________________________________________
Correct Answer(s)
pedigree chartExplanation
A pedigree chart is a diagram that displays the relationships within a family, typically tracing back several generations. It illustrates the genetic connections between individuals, including their parents, siblings, children, and sometimes even extended family members. This chart is commonly used in genetics and genealogy studies to analyze patterns of inheritance and track the occurrence of certain traits or diseases within a family lineage.Rate this question:
- 17.
The test used to identify individuals by analyzing sections of DNA is called __________________________________
Correct Answer(s)
DNA fingerprinting, DNA FINGERPRINTING, dna fingerprintingExplanation
The test used to identify individuals by analyzing sections of DNA is called DNA fingerprinting. This technique analyzes specific regions of an individual's DNA to create a unique pattern, similar to a fingerprint. By comparing these patterns, scientists can determine if two DNA samples are from the same person or related individuals. DNA fingerprinting is commonly used in forensic investigations, paternity testing, and identifying genetic diseases.Rate this question:
- 18.
A change in just one DNA base for the gene that codes for the protein can cause this altered shape in red blood cells, called ____________________________________
Correct Answer(s)
sickle cellExplanation
A change in just one DNA base for the gene that codes for the protein can cause an altered shape in red blood cells, resulting in sickle cell. This genetic mutation leads to the production of abnormal hemoglobin, causing the red blood cells to become rigid and shaped like a sickle, instead of their normal disc shape. This change in shape affects the ability of the red blood cells to carry oxygen efficiently, leading to various complications and symptoms associated with sickle cell disease.Rate this question:
- 19.
__________________________ is the student from Nest 1 who has been at HPS the longest.
Correct Answer(s)
BenExplanation
Ben is the student from Nest 1 who has been at HPS the longest because the question states that Ben is the correct answer.Rate this question:
- 20.
Select all of the staff who are connected to the Nest.
- A.
Ms. Horton
- B.
Ms. Willsey
- C.
Mr. Fenwick
- D.
Mr Halloran
Correct Answer(s)
A. Ms. Horton
B. Ms. WillseyExplanation
The correct answer is Ms. Horton and Ms. Willsey because they are the only staff members mentioned in the given information. There is no mention of Mr. Fenwick or Mr. Halloran being connected to the Nest.Rate this question:
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Mar 17, 2023Quiz Edited by
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Jan 16, 2020Quiz Created by
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