Question
F1–generation does not resemble either of the parents.

Answer

F1–generation does not resemble either of the parents: In incomplete dominance, a heterozygous organism carrying two alleles wherein one is dominant and the other one is recessive, (e.g., Rr). Hence, the heterozygote (Rr) will have an intermediate phenotype and will not resemble any parent.

Incomplete Dominance:

It is a phenomenon in which the F1 hybrid exhibits characters intermediate of the parental genes.

Here, the phenotypic ratio deviates from the Mendel’s monohybrid ratio.

It is seen in flower colours of Mirabilis jalapa (4 O'clock plant) and Antirrhinum majus (snapdragon), where red colour is due to gene RR, white colour is due to gene rr and pink colour is due to gene Rr.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

What are the various advantages of using genetically modified plants to increase the overall yield of the crop?
Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).
  1. Draw a simplified model of phosphorus cycling in a terrestrial ecosystem.
  2. Write the importance of such cycles in ecosystems.
Describe various methods of contraception for the population control.###What are the main types of methods of birth control?###Discuss use of Various Contraceptive measures used for population.
Describe the different stages of xerosere.
(a) Describe the observations made on collection of white winged moths and dark winged moths in England between the years 1850 and 1920. What did these observations lead to?
(b) How is the use of herbicides, pesticides and antibiotics by humans for various, comparable with the observations made on moths in the above question? What is this type of phenomenon called?
In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions,

  1. Fill in (1) and (2).
  2. Why is the virus called retrovirus?
  3. Can the infected cell survive while viruses are being replicated and released?

Study the graph given below and answer the questions that follow:

Explain the ovarian events (i), (ii) and (iii) under the influence of hormones ‘X’ and ‘Y’.

Describe the roles of pitutary and ovarian hormones during the menstrural cycle in human female.###Explain the various phases of menstrual cycle. Give a diagrammatic representation of various events during a menstrual cycle.
(a) It is supposed that IUDs are effective contraceptive devices. Write names of any two commonly used IUDs and mention their mechanism of action.
(b) When the married couples are advised for sterilization? How it is carried out in male and female humans, respectively?