Answer:
DNA stores biological information in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.
Explanation:
Crossing over in germinal cells during gametogenesis is one of the primary causes of this variance. In humans, gametes are generated during meiosis, which reduces the chromosome number to 23.
One cell divides twice during meiosis to create four daughter cells. These four daughter cells are haploid, meaning they have half the amount of chromosomes as the parent cell. Meiosis generates sex cells or gametes? (eggs in females and sperm in males).
During meiosis, homologous chromosomes are paired, resulting in gene recombination.
Non-sister chromatids exchange genetic material, resulting in novel allele combinations.
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2. Army Major Robert Anderson commanded which fort?
A. Sumter
Question 3. 3. The President of the Confederate States was
B. Jefferson Davis
Question 4. 4. Who fought against Secession in the United States of America?
C. President Lincoln
Question 5. 5. Clara Barton contributed to the Civil War in what way?
D. all of the above
Question 6. 6. Three States did not take sides during the Civil War.
True
False
Question 7. 7. There were six major battles in the Civil War.
False
Question 8. 8. Lincoln fought to prevent secession from the United States of America.
True
Question 9. 9. Clara Barton was the first nurse in the United States of America.
True
Question 10. 10. Jefferson Davis was the President of the United States of America during the Civil War.
<span>False</span>
If models let scientists see what could happens to earths climate then when we input different rates of CO2 in the future the model should be able to calculate the futures averages global temperature
The right answer is B) crossing over.
Crossing-over is a genetic phenomenon that occurs during meiosis and contributes to genetic mixing during reproduction (genetic recombination).
At the end of prophase 1 (early metaphase 1) of meiosis, the homologous chromosomes (i.e. of the same pair) overlap thus forming characteristic features called "chromatid tetrads" and exchange fragments of chromatids. The result is the intra-chromosomal mixing of the alleles
