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Tresset [83]
2 years ago
7

"Crossing Over" occurs in Prophase 1 of Meiosis. True False

Biology
2 answers:
hoa [83]2 years ago
6 0

Answer:

true

Explanation:

Naily [24]2 years ago
3 0

Answer:

Crossing over occurs during prophase I of meiosis before tetrads are aligned along the equator in metaphase I. By meiosis II, only sister chromatids remain and homologous chromosomes have been moved to separate cells. Recall that the point of crossing over is to increase genetic diversity.

Explanation:

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Which of the following correctly compares Ornithischian and Saurischian dinosaurs?
kumpel [21]

Answer:

The option c is partly correct.

Explanation:

None of the statements is completely accurate because:

a. Saurischian dinosaurs include theropod and sauropod dinosaurs, and their common ancestors. Ornithischians comprise neornithischians (ornithopods and ceratopsians), thyreophorans (ankylosaurs and stegosaurs) and heterdontosaurids.

b. Capability to fly has only been documented in fossils belonging to Saurischia (where the birds are also classified in). Feathers, on the other hand, do appear in the two clades. Feathers, however, are not a trait exclusively associated to flight.

c. This is a correct comparison between ornithischians and saurischians in the sense that the attributes do belong to these clades, but when comparing animals there most be a comparison that reflects a pattern. Ornithischians have leaf shaped teeth suited to eat plant material, whereas saurischians have teeth for a carnivore and herbivore diet.

d. Sauropods are saurischians and they evolved herbivory from a meat-eater ancestor.

5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST IF CORRECT
Sav [38]

Answer:

I think 1 = having waxy leaves and 4 = having roots that grow above ground

Explanation:

Not Sure how to explain.

7 0
3 years ago
___ are categorized by structure and function; ___ are categorized by their support roles.
OlgaM077 [116]

Answer:

Neurons; glia

Explanation: i took the test!

8 0
2 years ago
Which of the following organic molecules may have up to four levels of structure? A. Proteins B. Lipids C. Nucleic Acids D. Carb
masha68 [24]
The correct answer is proteins.

Proteins have four structures; (1) primary, (2) secondary, (3) tertiary, and (4) quaternary. Primary structures of proteins are formation of peptides and the peptide bonds between amino acids. Secondary structures of proteins involves the amino acid composition leading to hydrophobic interactions forming either alpha helices or beta sheets. Interactions between secondary structures of proteins will make the tertiary structure which is either soluble (globular) or insoluble (fibrous) proteins. Quaternary structures are the combination of two or more tertiary structures and these are called subunits.
4 0
3 years ago
Which best represents the role of the cell cycle in repair of an organism
maria [59]

Answer:

An active cell cycle in a child

Explanation:

7 0
3 years ago
Read 2 more answers
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