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What else can I help you with?
Is a dominant trait seen in the first generation or the second generation?
Dominant traits tend to manifest whenever they are inherited. The real question is, "When do you see recessive traits?" Traits are coded in genes. We all inherit genes from both of our parents. If the dominant trait is capital Y and the recessive trait is lowercase y we can calculate the odds fairly easily. There are only four combinations that can be inherited from one pair of parents: YY, Yy, yY, and yy (this is usually visualized using a "punnet square"). Only in the case of both inherited traits being lowercase y will we see the recessive trait. Otherwise, we will usually see the dominant trait.
How are dominant and recessive genes related?
Dominate them. Recessive alleles do not show in your phenotype unless you have two of the same recessive allele. But if you inherit one dominant and one recessive, it is the dominant that always shows in your phenotype.
If a brown-eyed mother and a blue-eyed father have four children three will probably have brown eyes. What can you conclude from this?
Brown eyes are dominant traits
What is the result of a cross between homozygous red and homozygous whitw four o'clock flowers?
Red color being governed by a dominant gene, all offsprings from this cross will have red flowers.
What are the chances that two parents who are heterozygous dominant for two?
If both parents are heterozygous dominant for two traits (e.g., AaBb), the chances of their offspring exhibiting different combinations of these traits can be analyzed using a Punnett square. Each parent can produce four types of gametes (AB, Ab, aB, ab), leading to a 16-cell Punnett square. The probability of specific trait combinations can be calculated from this square, revealing that the expected phenotypic ratio for two independently assorting traits is typically 9:3:3:1 for the dominant and recessive traits. Thus, the specific chances depend on the traits in question.
What is the phenotypic ratio of PpRr X Pprr?
To determine the phenotypic ratio of the cross PpRr (heterozygous for both traits) and Pprr (heterozygous for the first trait and homozygous recessive for the second), we can set up a Punnett square. The offspring will display four phenotypes based on dominant and recessive traits for both characteristics. The resulting ratio is 3:1 for the first trait (P vs. p) and 1:1 for the second trait (R vs. r), leading to a combined phenotypic ratio of 3:1:1:1 (3 dominant for the first trait and 1 recessive for both traits).
What are four facts about the southern cross?
One I noticed online was this fact: There is another crossed shaped constellation close to the Southern Cross called the "False Cross"
What are non mendelian trait?
Non-Mendelian traits are characteristics that do not follow the typical patterns of inheritance described by Gregor Mendel. Examples include traits controlled by multiple genes (polygenic traits), traits influenced by environmental factors, and traits with incomplete dominance or codominance. These traits may exhibit more complex inheritance patterns than the simple dominant and recessive traits outlined by Mendel.
What are non-mendelian trait?
Non-Mendelian traits are:A trait with no clearly dominant alleleA trait with four allelesA trait controlled by many genes
What are the four traits of electricity?
Current, power, voltage and resistance are the four traits of electricity.
Four-way cross meaning?
A four-way cross refers to a breeding technique in genetics where four different parental lines are crossed to produce offspring that may exhibit a combination of desirable traits from all four parents. This method is commonly used in agriculture and animal breeding to enhance specific characteristics such as yield, disease resistance, or growth rate. The offspring resulting from a four-way cross can show increased genetic diversity and hybrid vigor, potentially leading to improved performance.
Which cross will yield four phenotypes in the ratio?
A phenotype is the composite of an organism's observable traits. The answer to the question, the cross that will yield four phenotypes in the 1:1:1:1 ratio is fifty.
