Answer:
The first phase of Meiosis 1 is prophase 1. during the prophase 1 is where DNA is exchanged between homologous Chromosomes in a process called crossing over or recombination.
Virulence factors of virus aids in its ability to infect cells.
Explanation:
Virulence factors help pathogenic microbes to infect host cells by virulence mechanisms – invade host, cause and spread disease, evade the defense or immune mechanism of the host. These factors makes the virus to grow, replicate, and modify the host cells due to its toxicity.
Viruses binds to the receptor protein of the host cell.
Different types of virulent factors are: invasion factors, adhesive or adherent factors, capsules, endo and exotoxins, etc.
The virulence factors decides the severity and rate of spread of an infection
both coasts have abundant Barrier Islands. the average longshore drift direction on both coasts is from north to south. Both coasts are rising, and so are dominated by emergent shoreline features.
Answer:
The answer is E.
Explanation:
The question is incomplete. Here is the complete question:
An XXY chromosome constitution produces ________ development in humans and _________ development in fruit flies.
a. female; female
b. male; male
c. female; male
d. male; female
e. male, intersex
Normally, possessing two sex chromosomes for humans, having 3 sex chromosomes is an abnormality but it still results in a development of a male, who is infertile.
Fruit Flies are a species which possess 3 sex chromosomes normally, and in the cases in which there are 2 X choromosomes, it encourages the development of intersex fruit flies. Situations where there are 3 X choromosomes present result in female fruit flies and where there is only a single X chromosome result in male fruit flies.
I hope this answer helps.
