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lubasha [3.4K]
3 years ago
8

Field mustard is an annual plant that grows wild in many regions of the world. It has small yellow flowers and is pollinated by

insects. Field mustard has to flower and produce seeds to give rise to the next generation. Southern California experienced a severe drought between 2000 and 2004. Plants that flowered earlier reproduced. Those that flowered later died without producing seeds. This led to more early-flowering field mustard plants. This change in population characteristics took only a few generations.
How do you think scientists discovered that the flowering time of the field mustard had changed?
Biology
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

Due to early flowering in the mustard plant.

Explanation:

The scientists discovered that the flowering time of the field mustard had changed by observing more mustard plants which produces earlier flowers. The behaviour of the mustard plant change due to the change that occur in the environmental conditions that leads to early flowering in mustard plant. If this early flowering occurs for more generation, then the mustard plant will adopt this type of behaviour in normal environmental conditions that experience by the mustard plant.

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What are chromatids and how do they differ from chromosomes
Molodets [167]
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So after the DNA has been replicated, the chromosome consist of 2 sister chromatids, attached to each other at their centromere.

Overall, sister chromatid is one of the two double stranded DNA in a replicated chromosome, and chromosome is the whole "X" shape that we see. For example, in humans, after the S phase of interphase in the cell cycle, we have 46 chromosomes, with 92 chromatids, since each chromosome is an "X" shape, by having two sister chromatids.

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3 years ago
The process of DNA replication is described. Identify the enzyme that participates in each part of the replication process. DNA
Kazeer [188]

Answer:

Helicase

Explanation:

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The initial step of DNA replication is unwinding of double stranded DNA which is catalyzed by helicase enzyme. Helicase enzymes breaks the hydrogen bond between the  DNA strands and prepare them for replication process.

Hence, the correct asnwer is "Helicase".

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