Answer:
10 chromosomes/sister chromatids
Explanation:
Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.
Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.
Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.
N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.
Answer:
Developed vaccine for rabies virus.
Explanation:
Louise Pasteur was the french chemist and microbiologist who is known for his discoveries of pasteurization, fermentation and vaccination invention.
Pasteur is known for developing a vaccine for rabies and anthrax. He produced the rabies vaccine by infecting rabbits with rabies virus and harvesting the attenuating virus from nerve tissue of rabbits.
The development of rabies and anthrax vaccine by Pasteur helped in saving the lives of many people. Therefore his work with rabies produced vaccine for the deadly rabies virus.
Answer:
they obtain their energy from the sun and water and pollen
Explanation:
Sorry if I'm wrong have a good one!
The development of offspring takes place inside the UTERUS
Answer:
The correct option is 'C' that is eventually the population stop increasing or would decreases due to lack of food and living space.
Explanation:
In 1798, he wrote an essay on Principle of population where he described that how the population will grow with economy.
He claimed that the population will grow until the food supply decreases and then the population will stop growing due to lack of food and space and those individuals that can fight against this condition and and could attain food, space and other essential necessities will survive.
