Homework Answers
question 1
CAM photosynthesis is suited to maintained photosynthesis and productivity for plants that have evolved in drier and warmer environments. Plants that are adapted to dry environments, such as cacti and pineapples, use the crassulacean acid metabolism (CAM) pathway to minimize photorespiration.
c) CAM
question 2
Incomplete dominance is when a dominant allele, or form of a gene, does not completely mask the effects of a recessive allele, and the organism's resulting physical appearance shows a blending of both alleles. It is also called semi-dominance or partial dominance.
b) Incomplete dominance
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Which type of plant would you expect to find in the driest deserts? СЗ C4 O...
Genetics Experience Please The R locus determines flower color in a new plant species. Plants that...
Genetics Experience Please The R locus determines flower color in a new plant species. Plants that are genotype RR have red flowers, and plants that are rr have white flowers. However, Rr plants have pink flowers. What type of inheritance does this demonstrate for flower color in these plants? Incomplete dominance Complementation Lethal alleles Codominance Complete dominance
7. Tra diploid organism has the genotype AABh, what% of its gametes would you expect to...
7. Tra diploid organism has the genotype AABh, what% of its gametes would you expect to have the genotype A (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1598 b) 2596 c) 5096 d) 7546 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation to the PAH gene. Individuals with mutant forms of the PAW gene exhibit leaming deficits, abnormal skin pigmentation, as well as heart problems. This is an example of: a)...
42. true-breeding (homozygote) red flower plant was bred with a true-breeding pure white flower plant (therefore...
42. true-breeding (homozygote) red flower plant was bred with a true-breeding pure white flower plant (therefore P generation). What flower color you expect in Fl progeny? a) Only red b) Only white c) Only pink d) Both red and white If F, offspring (from the above question # 41) were crossed with each other, what flower color you expect in F2 progeny? a) Only red b) Only white c) Only pink d) All of the above What phenotype ratio you...
suppose Suppose a particular species of tulip plant has four alleles for the gene that codes...
suppose
Suppose a particular species of tulip plant has four alleles for the gene that codes for flower color. The Tallele produces purple tulips, the T'allele produces red tulips, the t'allele produces orange tulips, and the tallele produces yellow tulips. These alleles have the following dominance hierarchy: T>T'>t>t. For a cross of T'Tx Tt, determine the expected purple: red : orange : yellow phenotypic ratio of offspring for flower color, (Due to limitations in the grading ability of this program,...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
Hello, I just need someone to check my answer: The answer I choose are in bold...
Hello, I just need someone to check my answer: The answer I choose are in bold points. 1. What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants? Recessive genes occur more frequently in the F1 generation than do dominant ones Traits are inherited in discrete units, and are not the results of "blending" There is considerable genetic variation in garden peas Genes are composed of DNA 2. In a particular plant, two genes...
A plant produces purple and white flowers. Purple is dominant to white. If we have a...
A plant produces purple and white flowers. Purple is dominant to white. If we have a homozygous dominant purple flower and a homozygous recessive flower, which of the following choices are correct? O purple; PP O white; Pp O purple; pp O white; PP A heterozygous individual with brown eyes has a child with a homozygous dominant individual with brown eyes. What are the chances they have a blue-eyed baby? (You can create a Punnet square on a scratch paper...
Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during...
Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during cell division is called a) aneuploidy b) triploidy c) non-disjunction d) autosomal dysfunction 7. Ia diploid organism has the genotype AAB, what of its gametes would you expect to have the genotype AB (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1996 b) 2596 c) 5036 d) 7596 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation...
1. What ratio of offspring would result from a cross between a white-eyed male and a...
1. What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color? 2. If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of? a. dominance b. codominance c. multiple alleles d. incomplete dominance 3. The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A...
You have identified a new species of flowering plant with red flowers instead of the usual blue flowers. You performed a cross and found that all of the F1 plants had purple flowers. When you self-fer...
You have identified a new species of flowering plant with red flowers instead of the usual blue flowers. You performed a cross and found that all of the F1 plants had purple flowers. When you self-fertilized these F1 plants, the resulting F2 was: Blue flowers: 1034 Purple flowers: 297 Red flowers: 94 What would the expected numbers be if these phenotypes were due to two alleles with incomplete dominance at a single loci? What if these phenotypes were due to...
7. Tra diploid organism has the genotype AABh, what% of its gametes would you expect to have the genotype A (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1598 b) 2596 c) 5096 d) 7546 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation to the PAH gene. Individuals with mutant forms of the PAW gene exhibit leaming deficits, abnormal skin pigmentation, as well as heart problems. This is an example of: a)...
42. true-breeding (homozygote) red flower plant was bred with a true-breeding pure white flower plant (therefore P generation). What flower color you expect in Fl progeny? a) Only red b) Only white c) Only pink d) Both red and white If F, offspring (from the above question # 41) were crossed with each other, what flower color you expect in F2 progeny? a) Only red b) Only white c) Only pink d) All of the above What phenotype ratio you...
suppose
Suppose a particular species of tulip plant has four alleles for the gene that codes for flower color. The Tallele produces purple tulips, the T'allele produces red tulips, the t'allele produces orange tulips, and the tallele produces yellow tulips. These alleles have the following dominance hierarchy: T>T'>t>t. For a cross of T'Tx Tt, determine the expected purple: red : orange : yellow phenotypic ratio of offspring for flower color, (Due to limitations in the grading ability of this program,...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
A plant produces purple and white flowers. Purple is dominant to white. If we have a homozygous dominant purple flower and a homozygous recessive flower, which of the following choices are correct? O purple; PP O white; Pp O purple; pp O white; PP A heterozygous individual with brown eyes has a child with a homozygous dominant individual with brown eyes. What are the chances they have a blue-eyed baby? (You can create a Punnet square on a scratch paper...
Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during cell division is called a) aneuploidy b) triploidy c) non-disjunction d) autosomal dysfunction 7. Ia diploid organism has the genotype AAB, what of its gametes would you expect to have the genotype AB (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1996 b) 2596 c) 5036 d) 7596 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation...
1. What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color? 2. If black and white true-breeding mice are mated and the result is all gray offspring, what inheritance pattern would this be indicative of? a. dominance b. codominance c. multiple alleles d. incomplete dominance 3. The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A...
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