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Alexandra [31]
3 years ago
5

In pea plants, the allele for tallness (T) is dominant over the allele for shortness (t). If two tall pea plants are crossed, ca

n you predict the height of the offspring?
Biology
1 answer:
torisob [31]3 years ago
3 0
The offspring will be tall. When you cross Tt and Tt, or TT and TT, or Tt and TT, there is a greater chance of tall offspring being produced, since the T allele is more frequent.
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When the Australian wildfires occurred, what short-term effect did the
Ne4ueva [31]

Answer:

A. Plants and/or animals relocated or died.

Explanation:

Plants and animals will eventually come back, so that is a short-term effect on the ecosystem.

Hope this helps! :)

6 0
3 years ago
The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?
Vlada [557]

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Positive control transcription of Operon does not speed it up:

Lactose and glucose are present, -lac operon

Tryptophan is lacking in the -trp operon.

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.

Both positive control and negative control are used to control the lac operon.

Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.

—The repressor protein is deactivated and transcription is triggered when lactose is present.

Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.

Learn more about lac operons here:

brainly.com/question/1695549

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7 0
1 year ago
The blood group B is almost absent in Native Americans, whose ancestors arrived in very small numbers about 10,000 years ago. Wh
Taya2010 [7]
The factor that is responsible for the phenomenon of the blood group B being almost absent in Native Americans whose ancestors arrived in very small numbers about 10,000 years ago would be called the 'founder effect'. 
8 0
3 years ago
Select all the correct answers.<br> Which two statements are true for the leading strand in DNA?
Ghella [55]

Question: Which two statements are true for the leading strand in DNA?

It is synthesized toward the replication fork.

It is synthesized in the 3′ to 5′ direction.

It is synthesized away from the replication fork.

It is synthesized in the 5′ to 3′ direction.

Answer:

The two statements that are true for the leading strand in DNA are "it is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction"

Explanation:

Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA. The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.

3 0
3 years ago
What is the group number for Calcium and does it have cations or anions???
velikii [3]

Answer:

the group number is 2

Explanation:

it is cations

3 0
2 years ago
Read 2 more answers
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