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What becomes of a YY genotype?
In mice the YY genotype is lethal during embryonic development. This means that the mating of heterozygous individuals will produce a ratio of 2:1 Yy to yy offspring.A 'YY' genotype is homozygous dominant for that particular trait. If it is Yy, it will be heterozygous.
If two white sheep produce a black offspring the parent's genotypes for colr must be?
If two white sheep produce a black offspring, the parent's genotypes for color must be heterozygous, meaning both parents carry one allele for white (let's denote it as "W") and one allele for black (denote it as "B"). This results in the genotype "WB" for each parent, allowing for the possibility of producing a "BB" genotype (black) offspring when both parents contribute the black allele. Therefore, the parents are most likely "WB" (white) and "WB" (white).
The heterozygous of red and white flower color which was co-dominant would be?
If red color is dominant, (RR) and white is recessive, (rr) then crossing a homozygous red plant with a homozygous white plant will produce 100% red offspring. This is the F1 generation. These F1 offspring will be 100% heterozygous (Rr). Subsequent crosses of these offspring in the second generation (F2) will produce 75% red and 25% white offspring phenotypically (the visual appearance of the color, The genotype ratio will 1 RR: 2 Rr:1rr with percentages of 25% homozygous red 50% heterozygous red and 25% homozygous white.
What offspring are possible from a cross between a gg plant and a gg plant?
A cross between two gg plants, both homozygous recessive, will only produce offspring that are also gg. Since both parents contribute the same recessive allele (g), all the resulting offspring will be gg as well, resulting in 100% of the offspring exhibiting the same traits associated with the recessive genotype.
Can an AA and SS combination produce an SS genotype?
No because AA and SS create the genotype AS :)
What genotype is not true-breeding?
A heterozygous genotype (e.g. Aa) is not true-breeding because it carries two different alleles for a trait and can produce offspring with different genotypes when crossed. True-breeding genotypes are homozygous for a particular trait (e.g. AA or aa) and will consistently produce offspring with the same genotype when crossed.
Can an AAA and SS combination produce an AAA genotype?
No, an AAA and SS combination can only produce an Aa genotype. The offspring will inherit one allele from each parent, resulting in a heterozygous genotype. For an AAA genotype to be produced, both parents must have the same alleles for the specific gene.
What describes organisms or genotypes that are homozygous for a specific trait that always produce offspring of the same phenotype?
Organisms or genotypes that are homozygous for a specific trait and always produce offspring of the same phenotype are said to be true breeding. This means that when bred with another organism of the same genotype for that trait, all offspring will display the same characteristic.
What blood type can be found if the mother has type AB blood and the father has type A blood?
If the father is homozygous for the B blood group, giving him the BB blood genotype, and the mother's genotype is AB (the only genotype for the AB blood group), then their offspring could have either the AB or B blood groups. If the father is heterozygous for the B blood group, giving him the BO genotype, then their offspring could have the AB, A, or B blood groups. However, they could not produce an offspring with the O blood group.
What is the ONLY genotype that can produce a recessive phenotype?
Only a homozygous recessive individual will have the phenotype created by two recessive alleles.Since the term produce might indicate the production of offspring parents that can only produce offspring with a recessive phenotype must both have homozygous recessive genotypes.
What becomes of a YY genotype?
In mice the YY genotype is lethal during embryonic development. This means that the mating of heterozygous individuals will produce a ratio of 2:1 Yy to yy offspring.A 'YY' genotype is homozygous dominant for that particular trait. If it is Yy, it will be heterozygous.
Some animals such as cows normally produce only one offspring from each mating If a cow showed a dominant phenotype why would a typical testcross be a difficult way to determine the genotype?
Because a cow only produces one offspring at a time, not several like mice, cats, dogs, flies or frogs do. In order to have a successful test cross, the species of animal used must have at least 10 to 20 offspring to study from.
What is the probability than an offspring will have round seeds?
The probability of an offspring having round seeds depends on the genetic makeup of the parents. If round seeds are dominant (represented by "R") and wrinkled seeds are recessive (represented by "r"), the offspring's genotype will determine the phenotype. For example, if both parents are heterozygous (Rr), the probability of an offspring having round seeds would be 75%, as only the homozygous recessive (rr) genotype would produce wrinkled seeds. The specific ratio can vary based on the genotypes of the parents involved.
If two white sheep produce a black offspring the parent's genotypes for colr must be?
If two white sheep produce a black offspring, the parent's genotypes for color must be heterozygous, meaning both parents carry one allele for white (let's denote it as "W") and one allele for black (denote it as "B"). This results in the genotype "WB" for each parent, allowing for the possibility of producing a "BB" genotype (black) offspring when both parents contribute the black allele. Therefore, the parents are most likely "WB" (white) and "WB" (white).
The heterozygous of red and white flower color which was co-dominant would be?
If red color is dominant, (RR) and white is recessive, (rr) then crossing a homozygous red plant with a homozygous white plant will produce 100% red offspring. This is the F1 generation. These F1 offspring will be 100% heterozygous (Rr). Subsequent crosses of these offspring in the second generation (F2) will produce 75% red and 25% white offspring phenotypically (the visual appearance of the color, The genotype ratio will 1 RR: 2 Rr:1rr with percentages of 25% homozygous red 50% heterozygous red and 25% homozygous white.
What phenotype is produce by each of the following genotypes?
Genotype: AA - The phenotype is homozygous dominant, exhibiting the dominant trait. Genotype: Aa - The phenotype is heterozygous, exhibiting the dominant trait. Genotype: aa - The phenotype is homozygous recessive, exhibiting the recessive trait.
2 organisms that produce a low number of offspring?
Elephants and humans produce low numbers of offspring. Organisms that produce low numbers of offspring produce offspring that are most dependent on the mothers.
