Replicated chromosomes Replicated chromosomes A B C DE FG HI AB C DE FGHI Normat Normal: DE FG HI Авс FG HI DE ed'hr E fg h aь с With With Inversion: Inverslon: а ь с ed hi a e d cb fg hi Homologous palring during prophase Homologous palring during prophase Crossover site within the Crossover site within the Inversion loop Inverslon loop Авс GHI FGHI аьс Products after crossing over Products after crossing over А в с DE Авс DE FG HI FG HI ABC DE fg cb a Авсdео Acentric fragment Both chromosomes IH G F EDCD IH G F edhi fghl Dicentric chromosome carry a deletion and a duplication Dicentric bridge ь a bc a ed c fghi The consequences of crossing over in the inversion loop. (a) Crossover within a pericentric inversion. (b) Crossover within a paracentric inversion.

Q: How is the chromosome region where the centromere is located called? How are chromosomes classified…

A: Cell biology is considered as the study of cells, their structure, and their functions. The cells…

Q: The accompanying illustration shows one possible outcome of the random alignment of homologous…

A: Meiosis is a type of cell division in which a diploid mother cell divides into four genetically…

Q: why The chromatids formed byrecombination within the inversion loop of a pericentric…

A: When the region between two breaks of the same chromosome rotate 180°, it results in chromosomal…

Q: Explain why the homologous chromosomes of an inversion heterozygote can synapse only if an inversion…

A: Frans Janssen, in 1909, discovered Chiasmata. These are the points at which chromatids of homologous…

Q: Which of the following facilitate chromosome separation during anaphase of mitosis? All of these…

A: Amaphase is the third stage of mitosis. In this stage the chromosome starts separating and moving…

Q: In a Drosophila salivary chromosome, the bands have a sequence of 12 centromere 3 4 5 6 7 8. a. The…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: Homologous chromosomes can be either monads or dyads. Explain. How is it possible to have…

A: Homologous chromosomes are paired chromosomes. In this pair one chromosome comes from mother and one…

Q: Metacentric chromosomes have a centromere located:   A. near the middle of the chromosome…

A: The centromere is the specialized DNA sequence of a chromosome that links a pair of sister…

Q: a) What kind of thing went wrong with these chromosomes? Give a one-word (or two-word) answer. b)…

A: Here we see that,  non-homologous chromosomes are going through re-arrangements as they are…

Q: Name the type of chromosome whose centromere is in middle.

A: Chromosomes are thread-like structure situated inside the nucleus of plant and animal cells. Each…

Q: Single base pair mutations at which of the following sites would severely disrupt the segregation of…

A: Option D

Q: At what point duplicated chromosomes are joined?

A: Chromosomes are present inside the cell nucleus and made up of DNA (Deoxyribonucleic acid) molecules…

Q: Two chromosomes have the ff. order of genes: Normal Abnormal A B C centromere DEFGHI A B G F E D…

A: Analyzing the Chromosomal Inversiona) Type of Inversion:The abnormal chromosome has a pericentric…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: