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sex chromosomes

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The sex of most animals is determined by special chromosomes called?

sex chromosomes


The physical appearance of the entire set of chromosomes of a given animal is called a what?

The physical appearance of the entire set of chromosomes of a given animal is called a karyotype. It was first defined by Levitsky.


Traits are determined by pairs of genes called?

The two chromosomes (two "X" shapes) that are in a pair are generally called "homologous chromosomes". A pair of "chromatids" make up the two arms of a single chromosome.


The physical appearance of the entire set of chromosomes of a given animal is called a?

Chromatin Network


What is the name of the squiggly lines inthe nucleus of an animal cell?

The squiggly lines in the nucleus of an animal cell are called chromatin. Chromatin is a complex of DNA and proteins that condenses to form chromosomes during cell division.


The physical appearance of the entire set of chromosomes of a given animal is called?

Plato users, Karyotype.


Do animal cells have a chromosomes?

Yes, as a matter of fact, all living that reproduce via mitosis or meiosis will form chromosomes. Chromosomes are only formed during these ways of reproducing. At all other parts of a cell's life, chromosomes are stringy matter called chromatin.


How is an earthquake's hazard level determined?

They measure it with a special instrument called seismograph.


What is a sperm cell called in a plant or animal?

i think you are thinking of a haploid cell. it is called this because it doesnt have a full set of chromosomes.


The number of chromosomes is determined by counting what structure?

The number of chromosomes is determined by counting the paired structures called sister chromatids during cell division. Each sister chromatid contains a copy of the genetic material, allowing for accurate distribution of genetic material to daughter cells.


What is a term that represents the number of chromosomes in th nucleus before mitosis?

The number of chromosomes in the nucleus before mitosis is dependent on the species. The exact number is called the ploidy of the animal.


Why are the X and Y chromosomes called sex chromosomes?

The X and Y chromosomes are referred to as sex chromosomes because in mammals, sex is determined by the presence or absence of a Y chromosome. Therefore because these chromsomes relate directly to the sex/gender of an animal, they are called sex chromosomes. Genetically normal females have XX and genetically normal males have XY.