What is the genotype of a homozygous tall plant?
A tall, green plant is homozygous for each trait. If T is the tall allele, and G is the green allele, what is the genotype and the phenotype of this plant?…
|Homozygous||Two of the same allele||TT or tt|
|Heterozygous||One dominant allele and one recessive allele||Tt|
What is the predicted genotypic ratio for the offspring?
The genotypic ratio for this cross is written 1:2:1. In animals and plants, each gene has 2 alleles or variations, one from each parent. When male and female gametes come together (cross) all the phenotype variations for the offspring are predicted using the Punnett square grid.
What is the genotype of the sweet pea?
As sweet pea is autogamous, we presumed that the genotypes of all fixed cultivars and lines are homozygous. The white phenotype is determined by complementary genes (Bateson et al. 1904). Punnett (1923) designated the alleles “R-white” and “C-white”, which are recessive alleles of the R and C loci, respectively.
How do you represent a genotype?
Each pair of alleles represents the genotype of a specific gene. For example, in sweet pea plants, the gene for flower color has two alleles. One allele codes for purple flowers and is represented by the uppercase letter F, whereas the second codes for white flowers and is represented by the lowercase letter f.
What is the difference between sickle cell SC and SS?
Hemoglobin SC disease is the second most common type of sickle cell disease. It occurs when you inherit the Hb C gene from one parent and the Hb S gene from the other. Individuals with Hb SC have similar symptoms to individuals with Hb SS. However, the anemia is less severe.
Do sickle cell patients have weak immune system?
Sickle cell disease affects the spleen, which helps with the immune system. As a result, those with SCD have weakened immune systems and are more likely to get sick.
Can you have a baby with sickle cell?
Can Women With Sickle Cell Disease Have A Healthy Pregnancy? Yes, with early prenatal care and careful monitoring throughout the pregnancy, a woman with SCD can have a healthy pregnancy. However, women with SCD are more likely to have problems during pregnancy that can affect their health and that of their unborn baby.
What are the signs of sickle cell in babies?
What are the symptoms of sickle cell disease in a child?
- Anemia. This is the most common symptom.
- Yellowing of the skin, eyes, and mouth (jaundice). This is a common symptom.
- Pain crisis, or sickle crisis.
- Acute chest syndrome.
- Splenic sequestration (pooling).
What are the chances of having a baby with sickle cell?
If both parents have the sickle cell trait, the chance that a child will have sickle cell disease is 25%. If one parent is carrying the trait and the other actually has disease, the odds increase to 50% that their child will inherit the disease.
Which parent passes sickle cell trait?
It is inherited when a child receives two sickle cell genes—one from each parent. A person with SCD can pass the disease or SCT on to his or her children.
How did my child get sickle cell trait?
To inherit sickle cell trait, a child must get the sickle (S) gene from one parent and a normal gene (A) from the other parent (Picture 1). If a child inherits the sickle (S) gene from one parent and a sickle (S) or other abnormal hemoglobin gene* from the other parent, the child will have sickle cell disease.