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24 questions
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- Q1A scientist studies two groups of field mice. Although they are both the same kind of mouse, one has dark brown fur, and one has light brown fur. Which statement explains why the second group has light brown fur instead of dark brown?Their skin cells do not express genes that control fur color.They have a different number of chromosomes.There is no protein that determines fur color in their skin cells.They have different amounts of protein that determine fur color.300sMS-LS3-2
- Q2Hemoglobin is a protein found in red blood cells. This protein's shape helps it to carry oxygen through the body. Cell A in the picture is a normal red blood cell, and Cell B is a blood cell that is present in a person that has sickle cell anemia. Cell B is shaped this way because the structure of hemoglobin inside the cell has changed. Which statement also describes Cell B?Its proteins have different functions than that of Cell A.It has a completely different function than Cell A.It does not have any of the same proteins as Cell A.It cannot carry oxygen as well as Cell A.300s
- Q3Kaylee reads about how cells in the iris of the eye have a protein called the P protein. She reads that, in general, more of the P protein means that the cells will produce more color. Kaylee's mother has blue eyes, and her father has brown eyes. Kaylee also has brown eyes. Which statement explains why the irises of Kaylee's eyes are brown?They do not express any of the alleles that she inherited from her father.They express the allele she inherited from her father more than the allele she inherited from her mother.They do not have enough of the DNA she inherited from her mother, they only have DNA that she inherited from her father.They contain only one kind of P protein300s
- Q4Which statement describes the structure labeled OCA2 in the picture for this question?It's made of a section of protein.It's one of 46 different kinds in the cell.It's found in the cytoplasm of the cell.It’s made of a piece of DNA300s
- Q5Scientists often use fruit flies as a model organism in genetics because the function of each of their genes can be easily studied. Fly A inherited a set of alleles of a gene on chromosome 2. ➡Fly A’s alleles determined that it would have bright red eyes. ➡Fly B inherited a different alleles for this gene. Which statement describes how Fly A might be different from Fly B?it might have white eyesit might have an extra copy of chromosome 2it might have red wingsit might have a different number of genes300s
- Q6Luke is sketching a model of human chromosomes for science class. He has finished all of them except for the last pair, which are to represent the X and Y chromosomes. Which statement describes something he should do to make sure his model represents these chromosomes accurately?label them to indicate that X is found only in cells of the reproductive systemlabel them so the model states Y is found only in malesdraw them so that both X and Y are the same sizecolor them to show both X and Y have exactly the same genes300s
- Q7Every normal human should have _____ chromosomes22234648300s
- Q8An organism does not directly inherit traits from its parents-- it inherits the ___________ that help determine its traits from its parents.TraitsGenesProteinsChromosomes300s
- Q9DNA is the material that makes up _________ and a gene is a section of a long strand of ________.Traits / GenesGenes / DNAGenes/AllelesProteins / Traits300s
- Q10What do we call this image?karyotypechromotypegenotypephenotype300s
- Q11What are the structures with numbers called on this picture?proteinschromosomesindividual genesOCA2300s
- Q12Look at the picture, does this person have one of the genetic conditions listed at the top of the picture?No, they do not have any genetic conditionsYes, Down Syndrome, they have 3 copies of chromosome 21Yes, Patau Syndrome, they have 3 copies of chromosome #13Yes, Edward's Syndrome, they have 3 copies of chromosome #18300s
- Q13The cell in the diagram is reproducing through asexual reproduction. Which prediction can you make about the bacterial cells in the diagram?Both offspring will have DNA that is different from the parent cell's DNA.The DNA in the offspring cells will be identical to the parent cell’s DNA.The DNA in offspring A will be different than the DNA in offspring BBoth offspring will have half of the parent cell's DNA.300s
- Q14Anita buys some flowering plants from a local greenhouse. All of the plants are the same species, but some have red flowers, and some have white flowers. She plants them in her garden. In the fall, she collects the seeds from these parent plants. When the seeds from the parent plants grow the next spring, she is surprised to find that the offspring are red with white stripes. Which statement identifies the cause of the offspring having flowers that are both red and white in color?The plants reproduce asexually, which results in variation in the offspring.The offspring have genes that are identical to the parent plants.The plants reproduce by making copies of a single cell through cell division.The offspring have combinations of genes from the parent plants300s
- Q15Caroline is explaining chromosome inheritance during sexual reproduction to her family. She starts to sketch a model that shows the number of chromosomes in each kind of human cell. What numbers should Caroline write in the blanks below cell B and C?B: 23 C:23B: 23 C:23B: 23 C:46B: 46 C:69300s
