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Alla [95]
3 years ago
7

1.Two new nuclear membranes form during_____.

Biology
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

1. Two new nuclear membranes form during telophase.

2. The sister chromatids separate and move toward opposite centrioles during anaphase.

Explanation:

See answer above! :)

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Explanation:

5 0
3 years ago
Read 2 more answers
Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the
attashe74 [19]

Answer:

0.45 from mom and 0.05 from dad.

Explanation:

The recombinant progeny might occur due to the crossing over at the time of meiosis in which the exchange of chromosomes occur in the homologous chromosomes of non sister chromatids.

The progeny receives half of their chromosome from the mother and half from the father. The mother 50% AZ and 50% az chromosomes respectively. The 10% recombination has occured due to which the mother chromosomes is reduce upto 45%. The recombinant  10% will be aZ and Az and has 5% frequency. Mom has the ability of az chromosomes is 0.45 %. The father has the genotype 50% Az and 50% aZ. The 10% recombination has occured due to which the father chromosomes is reduce upto 45%. The recombinant will be az and AZ with 5% frequency. So, father has az with 0.05 % probability.

Thus, the answer is 0.45 from mom and 0.05 from dad.

8 0
3 years ago
What do scientists do to aquire new knowledge​
Anettt [7]

Scientists often perform experiments to check and recheck their work.  They also redo these experiments to ensure correct results.

5 0
3 years ago
What is present in the soil that makes nitrogen<br> directly available to plants?
lubasha [3.4K]
In order for plants to assimilate nitrogen directly into their system, the nitrogen must be in the form of nitrates. Nitrogen in the air and ammonia from decayed matter in the soil is converted to ammonium by decomposers and nitrogen-fixing bacteria. The ammonium is further nitrified to nitrates by nitrifying bacteria. Finally, the nitrates can then absorbed by the plants.
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3 years ago
Janine recently had surgery on the neck, or narrow lower portion, of her uterus. Janine's surgery was performed on the:
stira [4]

Cervix

Janine recently had surgery on the neck, or narrow lower portion, of her uterus. Janine's surgery was performed on the cervix.  

The cervix is the narrow neck-like passage that forms the lower portion of the uterus in the human female reproductive system. The cervix joins the vagina and uterus and it is mainly made up of fibromuscular tissue. The two major parts of the cervix are ectocervix and endocervix. During menstrual cycle, the cervix opens a bit to allow the passage of menstrual flow. The cervix also dilates largely to allow the passage of baby during childbirth.


3 0
3 years ago
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