In apple, the chromosome number of gametes is 17.
How many chromosomes are there in apple?
Key basic discoveries reported by Velasco and co-authors1 were: (1) the 17 chromosomes of the apple genome are monophyletically derived from a relatively recent genome-wide duplication of an ancestral 9-chromosome Rosaceae ancestor, giving a particular pattern of chromosomal homologies; (2) the gene pool of cultivated …
What is the number of chromosomes in a gamete of fruit fly?
Fruit fly somatic cells have eight chromosomes.
What is the chromosome number in apple primary endosperm nucleus?
Primary endosperm nucleus is formed by fusion of nucleus present in sperm with binucleate cell. The resultant is also known as secondary nucleus and is triploid in nature. Since the gamete contains 17 chromosomes, hence 17*3 = 51. Therefore, primary endosperm nucleus will have 51 chromosomes.
How many genes are in apples?
The apple genome: lots of genes
For one, it had a huge number of genes (approximately 57,000). This was more genes than had yet been found in a plant genome and twice as many as in the human genome.
How many chromosomes are in a gamete cell?
In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. The number of chromosomes in a single set is represented as n, which is also called the haploid number. In humans, n = 23.
How many chromosomes are in fruits?
Fruit crops and 2n =
|Fruit crops||Chromosome number 2n=|
What is the number of chromosomes in a gametes of Drosophila?
Gametes contain half the amount of chromosomes found in that species. Drosophila melanogaster is the fruit fly commonly used as a subject of study in many genetics experiments. The diploid amount of chromosomes in their body cells is 8 and the haploid number in their gametes is 4.
What is the chromosome number in gamete of onion?
Chromosome number in gamete of onion is 24.
What is the chromosome number of potato?
Common cultivated potato varieties include tetraploid (2n = 4x = 48) with a basic chromosome number of 12, while there are cultivated species at the diploid (2n = 2x = 24) to pentaploid (2n =5x = 60) levels.
What will be the chromosome number in primary endosperm cell?
Primary endosperm nucleus has 6 (3n=6) chromosome.
How many chromosomes are present in Meiocyte and gamete of apple respectively?
The number of chromosomes in the meiocyte (2n) of apple is 34, and the number , of chromosomes in gamete (n) of apple is 17.
How many genotypes are possible with 3 alleles?
Genotype is also used to refer to the pair of alleles present at a single locus. With alleles ‘A’ and ‘a’ there are three possible genotypes AA, Aa and aa. With three alleles 1, 2, 3 there are six possible genotypes: 11, 12, 13, 22, 23, 33. First we must appreciate that genes do not act in isolation.