Linkage refers to the tendency of inhertance of the DNA sequences that are close together on a chromosome during the meiosis of sexual reproduction. It can be measured by the recombination frequency.
Recombination frequency describes the proportion of recombinant offsrpring produced in a genetic cross between two organisms. It is the frequency with which a single chromosomal cross over takesplace between two genes during the process of meiosis. Recombination frequency (RF) is given by
RF= Recombinants /total offspring x 100.
In the above example, the number of recombinant offspring is 20 and the total offspring is 400. By substituting these values,
RF= 20/400 x100
= 5.
The recombination frequency for the above cross is 5.
The eukaryotic kingdom known known as Chromista is composed of single celled organisms among which of all the algae containing chlorophyll a and c. Most of the species belonging to this group are also photosynthetic.
Due to the vast number of species, some Chromistas have an asexual reproduction, whereas other reproduce sexually.
Asexual reproduction is achieved by the process of cellular division known as mitosis in which a parent cell divides into two identical daughter cells.
Sexual reproduction occurs through flagellated zoospores. Male gamets are produced by the antheridia, the male sex organ of algae, ferns, fungi etc. The haploid female gamets are produced through mitosis in oogonia. The joining of two gamets is called syngamy.
The answer is B. For example ex-boyfriend or ex-wife
Answer:
Which of the following statements about the cytoskeleton is false?
The cytoskeleton helps organize the cell’s structure and activities
Explanation:
The answer to your question is Tendons.
