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Eddi Din [679]
3 years ago
9

An important step in science is supporting a theory or

Biology
2 answers:
lubasha [3.4K]3 years ago
5 0

Answer:

How do mass and speed affect kinetic energy?

e g d e n u i t y 2020

Explanation:

GREYUIT [131]3 years ago
3 0

Answer:

How do mass and speed affect kinetic energy?

Explanation:

Edg 2020

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Help me thanks!!!!!!
garri49 [273]

Answer:

Im going to need the paper and article to do this

Explanation:

6 0
3 years ago
During Mendel's experiments, _____ alleles resulted in visible phenotypes when at least one copy was present.
Inessa [10]

Answer:

The word for the blank spot is Recessive.

Explanation:

3 0
2 years ago
Without the process of translation, our cells would not be able to:
soldi70 [24.7K]
Yes yes baby baby mama love mama mama baby baby love mama love bye love bye you
3 0
3 years ago
Why was molecular testing necessary to establish that species Z was closely related to Butanol Cyrus? In other words, why couldn
MissTica

Answer:

It is likely that the genomic sequences that were used did not enable to properly observe the evolutionary relationships among the species analyzed

Explanation:

The homology level between the genomic sequences may be too low to separate species that are phylogenetically related. In these cases, it is necessary to make a genetic analysis of the sequences that are used before the phylogenetic analysis

3 0
3 years ago
Briefly describe how amniocentesis and chorionic villi sampling are used in genetic screening.
bearhunter [10]

Answer:

Amniocentesis is an invasive method that involves the aspiration of 10-20 ml of fetal water through the abdominal wall under ultrasound-guided control. In most cases, the procedure is performed around the 16th week of gestation. The fetal water sample contains fetal cells, mostly cells of fetal skin and the epithelium of the urinary tract.

Chorionic Villus Sampling (CVS) biopsy is performed between weeks 11 and 12 of gestation. During biopsy, with ultrasound guidance, the tissue of the chorionic fossa is aspirated mainly across the abdomen (transabdominal pathway). The biopsy specimen is of fetal origin and belongs to the outer layer of blastocyst cells or the trophoblast (outer layer of the placenta). Very often, the biopsy specimen contains tissue of the decidua (mucous membrane of the uterus) that is of maternal origin, and it is necessary to remove the maternal tissue before any treatment of the sample.

Explanation:

The amniocentesis procedure carries a risk of miscarriage of 0.5-1%.  After aspiration of the fruit of the water, the sample is centrifuged to separate the cells from the amniotic fluid. Separate cells are seeded on a nutrient medium (cell culture) that stimulates cell growth. After about 14 days, the cell culture is further used for various genetic or biochemical analyzes such as karyotyping.

The advantage of chorionic biopsy is the amount of biological material, which is sufficient for the whole a number of different laboratory procedures. Also, a great advantage is the timing of the procedure as it allows diagnosis in the first trimester of pregnancy, but the chorionic biopsy procedure itself carries a risk of miscarriage of 1-2%.

3 0
3 years ago
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