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- Nullisomy is a genome mutation where a pair of homologous chromosomes that would normally be present is ______.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 ____? Group of answer choices 1. homozygous and heterozygous 2. homologous chromosomes 3. alleles 4. sister chromatidsGENETICS Alberta is phenotypically normal, but her brother (Rodrigo) has albinism, which is caused by an autosomal recessive mutation. The probability that Alberta is a carrier is______?
- Genetics (Study of genes) O a. All the other choices are valid O b. Our traits can be controlled by one or more genes O c. It is the study of the mode of transmission of genes from one generation to the next. O d. There are in general two copies of each gene called alleles in every diploid cell, with one allele on each homologous chromosome. If you get blue-black upon adding IKI to a substance, then this substance is a protein or a polypeptide O a. True O b. FalseA gene locus is ____. a dominant gene the location of a gene on a chromosome a sex chromosome an unmatched allele a recessive geneHUMAN TRAITS 1. Color blindness is a trait carried on the sex chromosomes. Let C be normal color vision and e be red-green color blindness. Use the diagrams to answer the questions. a. What is the sex of each of these people? Write either male or female on the blank below each. A D E b. Which are red-green color blind? e. Which have normal color vision? d. Which has normal color vision even with the gene for color blindness? 2. a. Complete the following Punnett squares. The first one has been done for you. b. Using these colors, shade the following parts of the Punnett squares. Blue-normal females Yellow-normal males Red-color blind females Green-color blind males wo
- 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 ApterThe number of Chromosomes in the human gene is ___.A cross between two individual heterozygous for one gene is called ___. monohybrid cross hybridization punnett square dihybrid cross testcross
- if two genes are linked ____ A. they are on different chromosomes B. they assort independently C. they code for the same protein D. they are on the same chromosomeChromosomes 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…white b. light black c. medium TA I. X-LINKED OR SEX-LINKED TRAITS A color-blind man marries a woman wit blind. Use aXfor normal vision, and al X for color-blindness, (Remember where sex-linked traits are carried). What is the genotype of the ma al vision, whose father was color- h norm type of the manand woman? Use a Punnett square to show the phenotypes of their progeny 172
