Alleles are alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. They determine observable characteristics, or phenotypes.
Genes which code for a pair of contrasting traits are known as
Asked in Clerk GR II Comb. Comp. Exam 2013 · Topic: Heredity (Mendel's Laws of Inheritance)
More Biology questions
- Given below are two statements, one is labelled as Assertion (A) and other as Reason (R). Assertion (A): Genetics is study of pattern of inheritance and variation of characters from parents to offspring. Reason (R): Inheritance is the process of transfer of characters from one to the next generation. Select the correct answer using the code given below : Code :
- According to Mendel's law of independent assortment, genes
- In pea, a pure tall plant (TT) is crossed with a short plant (tt). What will be the ratio of pure tall plants to short plants in the F₂ generation ?
- Phenotypic ratio of Mendelian Dihybrid cross is
- Mendel's law of independent assortment is based upon observations of
- एक जोड़े (कपल्स) को संदेह है ͩक उनके नवजात ͧशशु की हॉǔस्पटल में अदला-बदली हुई है। इस ͪववाद को सुलझाने के ͧलए रक्त वगर्गीकरण चाहा गया है। पुरुष का रक्त समूह A है तथा औरत का रक्त समूह B है। उनके जैͪवक ͧशशु का रक्त समूह हो सकता है : i. या तो A या B ii. A या B या O या AB iii. A या B या AB iv. AB सही ͪवकल्प चुǓनए :
- A couple suspects a mix up of their new born baby in the hospital. Blood typing is sought to resolve the dispute. The man has blood group A and the woman has blood group B. Their biological child can have blood group i. Either A or B ii. A or B or O iii. A or B or AB iv. only AB Choose the correct option :
- Father and mother having A and B blood group respectively