hgdws56uhhjn hgdws56uhhjn
  • 12-06-2020
  • Biology
contestada

An unfertilized egg cell has six chromosomes. After fertilization, how many chromosomes should the zygote have?

Respuesta :

luisvaschetto
luisvaschetto luisvaschetto
  • 18-06-2020

Answer:

12 chromosomes, because the basic (haploid) number of chromosomes is 6 (n: 6)

Explanation:

The unfertilized egg contains a basic (haploid) number of chromosomes (n), being in this case 6. In humans, for example, the gamete haploid cells have a basic n content of 23 chromosomes, while in somatic cells this DNA amount is duplicated (2n), being therefore 46 chromosomes that are organized into 22 pairs of autosomal chromosomes and two sex chromosomes (X and Y).  

Answer Link

Otras preguntas

Math help needed (grade 9)
Given N(-6,-8), O(5, 3), P(0, 9), and Q(x, 1). Find a such that NO || PQ.
A shop sells tins of paint in 2 litre and 5 litre cans. The manager checks the amount of paint he has in stock, and finds that there are 500 cans altogether. Th
List and explain FIVE (5) uses of the beta-amylase enzyme.
y is directly proportional to x3 When x = 10, y = 250(a) Find a formula for y in terms of x.
Find the nth term of the sequence 90,81,72,63
You just learned to write percents using a ratio or a decimal written in hundredths. Convert each fraction, decimal, or ratio below to a percent. If not already
Last year, Lisa opened an investment account with $6600. At the end of the year, the amount in the account had increased by 6.5%. How much is this increase in d
Write an equation in slope-intercept form of the line shown.
I am in need for answers please!