Homework Answers
9. Ans) a genetic disorder that will express itself in the presence of two recessive alleles
Explanation: a recessive disorder get expressed only in homozygous condition, ie both the alleles are recessive. A dominant disorder can express in homozygous dominant condition as well as heterozygous condition.
10. Both the alleles of a gene produce weakly functioning protein.
Neither allele is dominant. When an organism is heterozygous for a trait, it will show a third phenotype. The third phenotype is a blend of the other two.
11. Ans)Genetically diverse gametes are produced
Independent assortment during meiosis produce new genetic combinations that increases genetic variations within a population.
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Question 9 (Mandatory) (2 points) What is a recessive disorder? a...
6.Tay-Sachs disease is an autosomal recessive disorder that causes degeneration of nerve tissue in infants. Infants...
6.Tay-Sachs disease is an autosomal recessive disorder that causes degeneration of nerve tissue in infants. Infants with Tay-Sachs disease develop blindness, paralysis, and die at an early age. The gene for this disorder is located on chromosome 15. Sickle cell anemia is another autosomal recessive disorder. A person who is homozygous recessive for the sickle cell allele will have an abnormal hemoglobin protein which causes the red blood cells to have a sickle shape. The misshapen blood cells block capillaries...
2. A diploid cell contains two pairs of chromosomes, which we will call 1 and 2....
2. A diploid cell contains two pairs of chromosomes, which we will call 1 and 2. Assume chromosome! is clearly larger than chromosome 2. Each chromosome pair contains a maternal and a paternal member (e.g. 1 and 1 & 2 and 2"). An allele called G is localized to 1" whereas an allele called g is on chromosome 1P. Allele R is localized to 2m whereas alleler is localized to 2. Using these designations and clearly drawn and labeled chromosomes,...
can someone please help me with this ? Practice Using a Punnett Square. Punnett Squares are...
can someone please help me with this ?
Practice Using a Punnett Square. Punnett Squares are tools to identify outcomes known genotypes. They can be used to help infer probabilities of genotypes and from a particular cross. of possible crosses between individuals of phenotypes amongst offspring lele forms "A" and "a". A woman is heterozygous, so she can produce eggs with Consider a gene with all 9. and Write them across the top of the Punnett Square below the following...
Alleles are Multiple Choice recessive traits. exact copies of the same trait. O two versions of...
Alleles are Multiple Choice recessive traits. exact copies of the same trait. O two versions of the same trait. alternate versions of the same trait. dominant traits. Seved Which of the following is not true regarding meiosis and mitosis? Multiple Choice Both require two nuclear divisions. Mitosis occurs in all tissues. О Meiosis results in four daughter cells. O The products of meiosis are genetically dissimilar to each other During crossing over Multiple Choice genetic material is exchanged between sister...
D Question 72 1 pts If a diploid cell with 40 chromosomes undergoes meiosis, each daughter...
D Question 72 1 pts If a diploid cell with 40 chromosomes undergoes meiosis, each daughter nuclei will have _ chromosomes. 60 . O 10 Human diploid cells have chromosomes while human gametes have chromosomes.. 46; 92 48; 96 96; 48 O 46; 23 23; 46 Crossing-over only takes place between sister chromatids O can only occur once for each homologous chromosome pair O only takes place towards the middle of chromatids O can only occur once for each non-sister...
please help Question 1 (Mandatory) (2 points) A gamete from a human male contains: 22 autosomes...
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Question 1 (Mandatory) (2 points) A gamete from a human male contains: 22 autosomes and either an X or a Y chromosome. 23 autosomes and either an X or a Y chromosome. 23 autosomes and an X chromosome. 23 autosomes and a Y chromosome. 22 autosomes, one X chromosome, and one Y chromosome. Question 2 (Mandatory) (2 points) A karyotype you are viewing shows an extra piece of chromosome 1 attached to chromosome 22. What type of abnormality...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the two umbilical arteries? 2. Observe a fresh or preserved animal fetus and placenta, if available. Identify the following structures and then write a brief description of each a. Placenta b. Amnion (amniotic sac) c. Umbilical cord 蚰鷊 3. Observe a model of a pregnant human torso, if available Figre33-7 Human male karyotype with 23 pairs The placenta is located in which region of the...
The NEXT 2 QUESTIONS refer to this oocyte cell in G1 phase (chromosomes depicted condensed for...
The NEXT 2 QUESTIONS refer to this oocyte cell in G1 phase (chromosomes depicted condensed for simplicity). Gene loci of 2 genes (gene A and gene B) are shown with black bars on the chromosomes. Each of these genes has 2 alleles: allele 1 designated as the capital letter, and allele 2 designated as the lower case letter of the respective gene. Question 4 Tries remaining: Considering only the 2 genes A & B, how many genetically distinct gametes can...
2 points (IV.C.2) You are working as a genetic counselor and after completing a family pedigree,...
2 points (IV.C.2) You are working as a genetic counselor and after completing a family pedigree, you observe that eight of a couple's thirteen children have a disease. Some of the couple's grandchildren also have the disease. However, no grandchildren with two unaffected parents have the disease. What type of allele causes this disease? lethal O dominant Y chromosome о recessive (IV.C.1) You are studying two different genes; each gene is on its own chromosome. Gene H codes for height...
Amounts of which of the components of cell cycle regulation vary with cell cycle phase? Cyclin-dependent...
Amounts of which of the components of cell cycle regulation vary with cell cycle phase? Cyclin-dependent kinases Cyclins Checkpoints Kinetochores The synaptonemal complex forms to facilitate pairing of homologous chromosomes during prophase of mitosis and meiosis. prophase of meiosis I and II. c. prophase of meiosis I only. d. all stages of meiosis. Mendel’s Second Law of Independent Assortment refers to the separation of two identical alleles of the same gene. two different alleles of the same gene. alleles...
2. A diploid cell contains two pairs of chromosomes, which we will call 1 and 2. Assume chromosome! is clearly larger than chromosome 2. Each chromosome pair contains a maternal and a paternal member (e.g. 1 and 1 & 2 and 2"). An allele called G is localized to 1" whereas an allele called g is on chromosome 1P. Allele R is localized to 2m whereas alleler is localized to 2. Using these designations and clearly drawn and labeled chromosomes,...
can someone please help me with this ?
Practice Using a Punnett Square. Punnett Squares are tools to identify outcomes known genotypes. They can be used to help infer probabilities of genotypes and from a particular cross. of possible crosses between individuals of phenotypes amongst offspring lele forms "A" and "a". A woman is heterozygous, so she can produce eggs with Consider a gene with all 9. and Write them across the top of the Punnett Square below the following...
Alleles are Multiple Choice recessive traits. exact copies of the same trait. O two versions of the same trait. alternate versions of the same trait. dominant traits. Seved Which of the following is not true regarding meiosis and mitosis? Multiple Choice Both require two nuclear divisions. Mitosis occurs in all tissues. О Meiosis results in four daughter cells. O The products of meiosis are genetically dissimilar to each other During crossing over Multiple Choice genetic material is exchanged between sister...
D Question 72 1 pts If a diploid cell with 40 chromosomes undergoes meiosis, each daughter nuclei will have _ chromosomes. 60 . O 10 Human diploid cells have chromosomes while human gametes have chromosomes.. 46; 92 48; 96 96; 48 O 46; 23 23; 46 Crossing-over only takes place between sister chromatids O can only occur once for each homologous chromosome pair O only takes place towards the middle of chromatids O can only occur once for each non-sister...
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Question 1 (Mandatory) (2 points) A gamete from a human male contains: 22 autosomes and either an X or a Y chromosome. 23 autosomes and either an X or a Y chromosome. 23 autosomes and an X chromosome. 23 autosomes and a Y chromosome. 22 autosomes, one X chromosome, and one Y chromosome. Question 2 (Mandatory) (2 points) A karyotype you are viewing shows an extra piece of chromosome 1 attached to chromosome 22. What type of abnormality...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the two umbilical arteries? 2. Observe a fresh or preserved animal fetus and placenta, if available. Identify the following structures and then write a brief description of each a. Placenta b. Amnion (amniotic sac) c. Umbilical cord 蚰鷊 3. Observe a model of a pregnant human torso, if available Figre33-7 Human male karyotype with 23 pairs The placenta is located in which region of the...
The NEXT 2 QUESTIONS refer to this oocyte cell in G1 phase (chromosomes depicted condensed for simplicity). Gene loci of 2 genes (gene A and gene B) are shown with black bars on the chromosomes. Each of these genes has 2 alleles: allele 1 designated as the capital letter, and allele 2 designated as the lower case letter of the respective gene. Question 4 Tries remaining: Considering only the 2 genes A & B, how many genetically distinct gametes can...
2 points (IV.C.2) You are working as a genetic counselor and after completing a family pedigree, you observe that eight of a couple's thirteen children have a disease. Some of the couple's grandchildren also have the disease. However, no grandchildren with two unaffected parents have the disease. What type of allele causes this disease? lethal O dominant Y chromosome о recessive (IV.C.1) You are studying two different genes; each gene is on its own chromosome. Gene H codes for height...
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