How many chromosomes does an egg cell of a fruit fly have?

Every fruit fly gamete (sperm or egg) has 4 chromosomes.

How many chromosomes does a fruit fly have?

It has four chromosomal pairs: one that determines sex and three autosomal chromosomes. Each chromosome has two arms, referred to as the left and the right.

Do fruit flies have 46 chromosomes?

Humans have 23 pairs of chromosomes, or 46 chromosomes in all. … While drosophila only have a total of 4 chromosomes, they too display sexual dimorphism, with females carrying the double X chromosomes and males carrying XY.

How many chromosomes would you expect to find in an egg cell made by this insect?

How many would you expect to find in an egg cell? Each gamete cell has 23 chromosomes.

How many homologous pairs of chromosomes are in a fruit fly?

homologous chromosomes is diploid, meaning “two sets.” The diploid number of chromosomes is sometimes represented by the symbol 2N. For the fruit fly, the diploid number is 8, which can be written as 2N = 8, where N represents twice the number of chromosomes in a sperm or egg cell.

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What are the 23 chromosomes?


Humans have 23 pairs of chromosomes–22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.

Where do fruit flies lay eggs?

Fruit flies typically lay their eggs directly on rotting fruits and vegetables or else inside drains that are not kept clean. The pests may produce up to 500 offspring during any mating season, and it only takes about a week for the entire life cycle to conclude.

Are fruit flies asexual?

Biologists have long pondered why sex exists, as reproducing asexually seems to make better evolutionary sense. Now, an experiment with fruit flies confirms one advantage of sex: It gives an edge to beneficial mutations. … By crafting synthetic chromosomes, they created flies that reproduce asexually.

How many chromosomes does a sperm or egg cell have?

The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

What is the chromosome number of Apple?

The modern apple has 17 chromosomes which were found to be derived from an ancestor with 9 chromosomes that experienced genome-wide duplication.

How many chromosomes do egg cell and sperm cell have?

Almost all the cells in your body have 46 chromosomes. There are two types of cells that are different. These are the eggs in a woman and the sperm in a man. They only have 23 chromosomes each.

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Why does a fruit fly have 8 chromosomes?

Explanation: Somatic cells are diploid, which means they have two sets of chromosomes, one set from the mother and one set from the father. The somatic cells of fruit flies contain eight chromosomes, which means they have two sets of four chromosomes. Meiosis is the process by which sex cells are produced.

When a fruit fly sperm fertilizes a fruit fly egg is the fertilized egg diploid or haploid?

It is diploid because it receives the haploid number from both the sperm and the egg. What two things happen in Prophase I that increase genetic variability in offspring?