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A human protein, MC1R is responsible for telling human cells what type of pigment proteins to produce.
One version of MC1R causes cells to make red pigments, while another version causes our cells to make black pigments.
The red version causes red hair. The black version causes black hair.
The two versions are called ____?
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- A human protein, MC1R is responsible for telling human cells what type of pigment proteins to produce. One version of MC1R causes cells to make red pigments, while another version causes our cells to make black pigments. The red version causes red hair. The black version causes black hair. The two versions are called O homozygous and heterozygous homologous chromosomes alleles sister chromatidsONE OF THE ANSWER IS WRONG PLEASE HELP ME FIND THE RIGHT ANSWER Duplication of genes is an important evolutionary mechanism. As a result, many, cases are known in which a species has two or more identical genes. Suppose there are two genes - A and B - that specify production of the same enzyme. These two genes show autosomal recessive inheritance. An abnormal phenotype results only if an individual does not make any of that enzyme. Only one of these two genes needs to be functional in order to make the enzyme. What ratio of normal to abnormal progeny would result from a mating between two parents of genotype AaBb where A and B represent alleles that specify production of the enzyme, while a and b do not? Write your ratio like this - e.g 1:2 ratio - Suppose now there are three genes - A,B and C that specify production of this enzyme and again only one single functional allele is sufficient for a wild-type phenotype. How many of the possible phenotypes would be normal? Write your answer…Chromosomes and Heredity Multiple Choice: Write the CAPITAL letter of your answer choice in the blank AND circle the letter. 1. A family record that shows how a trait is inherited over several generations is called a A. karyotype B. Punnett square C. pedigree 2. A person that has ONE copy of an AUTOSOMAL RECESSIVE allele and does not express the trait, but can pass it along to his/her offspring is called a A. mutant B. carrier C. hemophiliac D. gene marker 3. The failure of homologous A. segregation 4. This picture of an organism's chromosomes is called a A. pedigree B. Punnett square C. karyotype D. chart chromosomes to separate during meiosis is called B. codominance C. sex-linkage 78 38 88 28 XX XK X 85 X5 88 88 88 AA AB on 5. The person shown at the right is a A. male B. female 6. The chromosomes that DO NOT determine sex are called A. sex chromosomes B. autosomes 7. Which parent determines the sex of the baby? A. father B. mother body. B. Klinefelter **** 9. Most sex-linked genes…
- Figure 1.7 Decide if each of the following is an example of inductive or deductive reasoning. All flying birds and insects have wings. Birds and insects flap their wings as they move through the air. Therefore, wings enable flight. Insects generally survive mild winters better than harsh ones. Therefore, insect pests will become more problematic if global temperatures increase. Chromosomes, the carriers of DNAr separate into daughter cells during cell division. Therefore, each daughter cell will have the same chromosome set as the mother cell. Animals as diverse as humans, insects, and wolves all exhibit social behavior. Therefore, social behavior must have an evolutionary advantage.If you have a mutation in your skin cells from falling asleep in a tanning bed, how will this affect your offspring? Question 10 options: It will affect their entire body because their entire body grew out of the fertilized egg It may affect them, depending on whether those particular skin cells are passed on to them It will affect your offspring's skin cells only It won't affect them because the mutation is not in a gamete It won't affect them because mutations cannot be passed down to offspringYou are a studying the genetic basis of horn color in unicorns. Gene C determines the color of pigment destined for the horn by converting a pink precursor into a purple pigment. C- individuals make purple pigment whereas cc individuals accumulate pink precursor. Gene D ensures the deposition of the pigment into the horn cells, such that D- individuals have a colored horn (purple or pink), whereas dd individuals have a white horn. You breed two purple horned unicorns to each other (CcDd). Assuming Gene C and Gene D are unlinked, what is the probability that the baby unicorn has a purple horn? Please express your answer to 2 decimal places (e.g. 0.69).
- THE ROLE OF CHROMOSOMES 1. Examine the chromosomes shown below from two people. Then, answer the questions that follow. **** ** ***R 9 10 9 10 13 14 15 11 12 14 15 88 ** ** ** ** 16 17 18 19 20 17 18 19 20 21 22 XY 21 22 XX a. Is person A male or female? How do you know? b. Is person B male or female? How do you know? c. Circle the sex chromosomes of each of the above people. 2. Complete the Punnett square. Then, answer the questions below. a. Out of four children, how many are expected to be femaie? b. Out of four children, how many are expected to be male? e Which sex chromosome do both males and females have d. Which sex chromosome do only males have Bepring anohaded. e Shade the female officring in the sbove Punnett equare Leane thePlease answer fast The two mutations we observed were ebony body and vestigial wings. Could the type of mutation affect the outcome of the cross (i.e. skew the number of each kind of fly)? Why or why not? Hint: think about how a particular mutation might affect the life of the fly.Different cells in your body (like muscle cells and brain cells) look very different and do very different jobs in your body. Select all the true statements about these cells: The nuclei of muscle cells and brain cells contain identical chromosomes to each other. Muscle cells have different chromosomes than brain cells. Muscle cells and brain cells have the same genes on their chromosomes muscle cells and brain cells have different genes on their chromosomes Muscle and brain cells express (use) every gene found on their chromosomes Muscle cells and brain cells express (use) all the same genes as each other Muscle cells and brain cells express (use) different genes from each other tv MacBook Air 80 888 FB F7 F4 F3 & # $ % 9 5 6 8 3 4 P Y U E K F G C V command ...- R
- G1 phase cat cells will have 19 pairs of chromosomes. In a cat cell in metaphase of mitosis .. A. How many sister chromatids would the cell have? B. How many centromeres would the cell have? C. How many centrosomes would the cell have? Explain what happens in the following stages S phase Prophase Anaphase Cytokinesis What is a checkpoint? Give an example and say what happens at that checkpoint Put the images in the correct order in the cell cycle and name the stages. For the order part, just use the numbers: if the correct order is 1 2 3 4 5, write in that order. 4 3 .. G 0000 5 2 Maphase plait Comono Controles ApterPart 1. Norrie disease is caused by a recessive mutation on the X chromosome in a gene called norrin. The disease affects the eyes and can cause blindness. In the picture below, the left (A) and right (B) retinas from the same female mouse are shown. The X chromosome inherited from the father is labeled magenta and the X chromosome inherited from the mother is labeled yellow. А. В. From this picture, and the information you know about X chromosomes, what can you conclude? Imprinting randomly renders one of these X chromosomes inactive per cell, so this is what you would expect from that process. The maternal chromosome is likely imprinted in the left eye while the paternal chromosome is likely imprinted in the right eye. In the left eye, more of the cells have the paternal chromosome inactivated than in the right eye. In the left eye, more of the cells have the maternal chromosome inactivated than in the right eye. Part 2. Given the information in the previous question, if the norrin…I need help with a biology question Use the following information to answer the question. Using the alleles IB =B, IA =A and i =O. A woman who has blood type A has a daughter who is type O and a son who is type B. Which of the following is a possible genotype for the mother? ii IBIB IBi IAi Thanks for your help, :)