What colors are the parents shown in Punnett Square B?
What color are the parents shown in the punnet square B? The white guinea pig is homozygous (bb) and the black guinea pig is heterozygous (Bb). If the black guinea pig parent were a homozygous (BB) then there would be no chance for the offspring to be white. They would all be heterozygous, black.
What is the that a child will be homozygous or heterozygous?
Homozygous: You inherit the same version of the gene from each parent, so you have two matching genes. Heterozygous: You inherit a different version of a gene from each parent. They do not match.
What is an example of a heterozygous?
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
What is the heterozygous trait?
Heterozygous refers to having different alleles for a particular trait. When alleles are heterozygous in complete dominance inheritance, one allele is dominant and the other is recessive. The genotypic ratio in a heterozygous cross where one parent is heterozygous and the other is homozygous for a trait is 1:1.
What is heterozygous in simple words?
​Heterozygous Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.
What type of genotype is TT?
| Genotype Symbol | Genotype Vocab | Phenotype |
|---|---|---|
| TT | homozygous DOMINANT or pure tall | tall |
| Tt | heterozygous or hybrid | tall |
| tt | homozygous RECESSIVE or pure short | short |
Can As marry as?
Compatible genotypes for marriage are: AA marries an AS. You’ll end up with kids with AA and AS which is good. But sometimes if you’re not lucky all the kids will be AS which limits their choice of partner. AS and AS should not marry, there is every chance of having a child with SS.
Is blue eyes a genotype or phenotype?
Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.
Is TT a phenotype?
The offspring with the genotypes TT and Tt will have a phenotype of tall; the offspring with the genotype of tt will have a phenotype of short. If the two alleles are the same (TT or tt), the genotype is considered purebred. If the two alleles are different (Tt), the genotype is considered hybrid.
Is AA a genotype or phenotype?
Table 4-5. Correlation of ABO phenotypes and genotypes.
| Phenotype | Possible Genotype |
|---|---|
| A | AA or AO |
| B | BB or BO |
| AB | AB |
| O | OO |
Is TT purebred?
The result of this cross was all tall hybrid pea plants (Tt). When these second-generation plants were crossed, the result was one tall (TT) purebred; two tall (Tt) hybrids; and one short (tt) purebred. Mendel concluded that tallness in pea plants was dominant, and became the expressed trait, (uppercaseT).
Is BB genotype or phenotype?
Phenotype. The physical appearance of the genotype is called the phenotype. For example, children with the genotypes ‘BB’ and ‘Bb’ have brown-eye phenotypes, whereas a child with two blue-eye alleles and the genotype ‘bb’ has blue eyes and a blue-eye phenotype.
Which genotype is purebred?
Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS. Phenotype is the PHYSICAL appearance of a trait, such as a YELLOW (or BLUE) body color.
Is green eyes a genotype or phenotype?
Both green and brown eyes are [ dominant / recessive ] to blue eyes. 4. There are [ one / two / three / four ] possible genotypes for green eyes.
Is curly hair a genotype or phenotype?
A phenotype is your version of a trait. Blue eyes vs brown eyes and curly hair vs straight hair are examples of phenotypes. A genotype is your combination of genes that produce your phenotype. If you have curly hair, your genotype is two curly hair versions of the hair texture gene: one from mom and one from dad.
What is the rarest hair type?
Type 1A
Is curly hair a Mendelian trait?
It has been long established that curly hair is a dominant trait in Caucasians and straight hair is recessive. However, a single gene has yet to be found to be solely responsible for the curly (or straight) hair trait in Caucasians.