Homework Answers
Genotypes made of the same alleles: Homozygous
Different forms of genes for a single trait: Alleles
Gene that is always expressed: Dominant
Gene that is expressed only in the homozygous state: Recessive
Genotypes made of two different alleles: heterozygous.
You were right in all of your answers. As you know, an allele is a form of a gene. It could be dominant or recessive. The heterozygous genotype posses two types alleles but the dominant allele is the one who is expressed. In the case of recessive alleles, it is required that 2 of theses alleles where present in order to be expressed.
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chicken. Match the definitions on the left with the terms on the right. D 1. genotypes...
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...
Match the phenotypes on the labels at left to the genotypes listed below. Labels can be used...
In mice, agouti fur is a dominant trait resulting in individual hairs having a light band of pigment on an otherwise dark hair shaft. A mouse with agouti fur isshown here, along with a mouse with solid color fur, which is the recessive phenotype (A = agouti; a = solid color).A separate gene,which is not linked to the agouti gene, can result in either a dominant black pigment or a recessive brown pigment (B = black; b =brown).A litter of...
QUESTION 1 Match the following description with an appropriate term Trait ✓ Gene v B. Genotype...
QUESTION 1 Match the following description with an appropriate term Trait ✓ Gene v B. Genotype Homozygous Dominant allele A Phenotype Heterozygous v Allele A. The observable physical characteristics of an organism B. The genetic makeup that contributes to phenotype C. The individual genetic units that produce a characteristic D. Variation of a same characteristic E Variation of a same gene F. Two copies of a same gene have same alleles G. Two copies of a same gene have different...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant -...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant - Homozygous recessive- Heterozygous- 2. Put into your own words Mendel's law of segregation. LI Does the law of segregation always apply when dealing with genes located on chromosomes within a diploid nucleus? If not, explain why. 3. Mendel worked with several pea plant characters, each of which was determined by a single gene with two alleles, one dominant and the other recessive. For each...
Mendel worked with pea plants that showed complete dominance for several traits. He was able to...
Mendel worked with pea plants that showed complete dominance for several traits. He was able to check his hypotheses about how inheritance works. He determined that traits are caused by two (? ) factors - one from the mother and one from the father. ?= form of allele that will mask the recessive ?= form of allele that will not show unless both alleles are recessive. ?= sections of a chromosome that code for proteins (and show up as traits)....
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a)...
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a) typically have 23 pairs of chromosomes b) are heterozygous for a trait when they carry different alleles c) carry 2 copies of chromosomes d) are homozygous for a trait when they carry different alleles 2. Why are garden peas a good subject for Mendel's experiments? a) garden peas had either or traits b) garden pess could self-pollinate to produce offspring of the same variety...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes....
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozyg...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible phenotypes if "A" is completely dominant over "a." 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of...
Match the following pairs of sets by writing each number in the first column beside an...
Match the following pairs of sets by writing each number in the first column beside an appropriate unnumbered word or set of words in the second column. 1. Gregor Mendel Having one set of chromosomes 2. Recessive genes Have identical features 3. Heterozygous Father of genetics 4. Haploid Often caused by mutations 5. Diploid Contributes to variation 6. Crossing over Never expressed in the presence of a dominant allele 7. Homologous chromosomes Affect two or more traits 8. Punnett square...
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...
QUESTION 1 Match the following description with an appropriate term Trait ✓ Gene v B. Genotype Homozygous Dominant allele A Phenotype Heterozygous v Allele A. The observable physical characteristics of an organism B. The genetic makeup that contributes to phenotype C. The individual genetic units that produce a characteristic D. Variation of a same characteristic E Variation of a same gene F. Two copies of a same gene have same alleles G. Two copies of a same gene have different...
Name: PRELAB QUESTIONS 1. Define the following terms: Gene- Allele - Phenotype- Genotype- Homozygous dominant - Homozygous recessive- Heterozygous- 2. Put into your own words Mendel's law of segregation. LI Does the law of segregation always apply when dealing with genes located on chromosomes within a diploid nucleus? If not, explain why. 3. Mendel worked with several pea plant characters, each of which was determined by a single gene with two alleles, one dominant and the other recessive. For each...
Circle the correct answer, there may be more than one correct answer 1. Diploid Organisms: a) typically have 23 pairs of chromosomes b) are heterozygous for a trait when they carry different alleles c) carry 2 copies of chromosomes d) are homozygous for a trait when they carry different alleles 2. Why are garden peas a good subject for Mendel's experiments? a) garden peas had either or traits b) garden pess could self-pollinate to produce offspring of the same variety...
1) The alternate forms of a gene for the same trait are known as -A)alleles. B)phenotypes. C)genotypes. D)codominants. E)incomplete dominants. 2) Mendel carried out most of his research with A)livestock -B)pea plants. C)guinea pigs. D)fruit flies. E)bacteria. 3) Which of the following is true according to Mendel's law of segregation? A)Each individual contains two alleles for each trait. B)Fertilization restores the presence of two alleles. C)Alleles separate from each other during gamete formation. D)Each gamete contains one copy of each...
5. Fur colour in mice is a single gene trait controled by two alleles. In a population of 75 mice, 21 are homozygous dominant, 37 are heterozygous dominant, and 17 are homozygous recessive. What is the frequency of the dominant allele in the population? Show all work and record your answer as a value between O and 1 rounded to two decimal places 6. The Hardy-Weinberg principle states that allele and genotype frequencies remain constant from one generation to the...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible phenotypes if "A" is completely dominant over "a." 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of...
Match the following pairs of sets by writing each number in the first column beside an appropriate unnumbered word or set of words in the second column. 1. Gregor Mendel Having one set of chromosomes 2. Recessive genes Have identical features 3. Heterozygous Father of genetics 4. Haploid Often caused by mutations 5. Diploid Contributes to variation 6. Crossing over Never expressed in the presence of a dominant allele 7. Homologous chromosomes Affect two or more traits 8. Punnett square...
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