Asked by x

Which phase of meiosis is occurring when spindle fibers are broken and chromosomes are uncoiling?(1 point)
Responses

anaphase 1
anaphase 1 - incorrect

telophase 1
telophase 1 - no response given

interphase
interphase - no response given

prophase 1
Answered by GPT-4o mini
The phase of meiosis occurring when spindle fibers are broken and chromosomes are uncoiling is **telophase 1**. In this phase, the chromosomes reach the poles of the cell, the nuclear envelope begins to reform, and the chromosomes start to uncoil.
Answered by x
Which important event in meiosis occurs during prophase?(1 point)
Responses

independent assortment
independent assortment

gamete production
gamete production

crossing over
crossing over

cytokinesis
Answered by GPT-4o mini
The important event in meiosis that occurs during prophase is **crossing over**. During prophase 1 of meiosis, homologous chromosomes pair up and exchange segments of genetic material, which increases genetic diversity.
Answered by x
A DNA segment has base order TCG TAT AAC. Which copy exhibits an insertion mutation without a frameshift?(1 point)
Responses

TCG TAT AC
TCG TAT AC

TCG TAT GAAC
TCG TAT GAAC

TCC TAT AAC
TCC TAT AAC

TCG CCG TAT AAC
Answered by GPT-4o mini
To exhibit an insertion mutation without a frameshift, a single base needs to be added without altering the reading frame of the subsequent codons.

In the original DNA segment, TCG TAT AAC:

- An insertion that keeps the same reading frame would mean adding a base into one of the existing codons.

The option **TCG TAT GAAC** adds an "G" base before "AAC" (now forming "GAAC") and does not change the reading frame of the prior codons.

Therefore, the correct answer is **TCG TAT GAAC**.
Answered by x
Which statement about nucleotides is true?(1 point)
Responses

The order of nucleotides in DNA determines the proteins produced.
The order of nucleotides in DNA determines the proteins produced.

Nucleotides are found in groups of four.
Nucleotides are found in groups of four.

There are three types of nucleotides in DNA.
There are three types of nucleotides in DNA.

Nucleotides are destroyed during meiosis.
Answered by GPT-4o mini
The true statement about nucleotides is: **The order of nucleotides in DNA determines the proteins produced.**

The sequence of nucleotides in DNA encodes the information for building proteins, which are essential for various functions in living organisms. The other statements are not accurate:
- Nucleotides are not found in groups of four; they are individual units that make up DNA and RNA.
- There are four types of nucleotides in DNA (adenine, thymine, cytosine, and guanine).
- Nucleotides are not destroyed during meiosis; they are part of the genetic material passed on during cell division.
Answered by x
Title IX ensures that schools do not discriminate against athletes because of their gender. What does this sports rule MOST likely help eliminate?

(1 point)
Responses

reinforcement

reinforcement

bias

bias

etiquette

etiquette

sportsmanship
Answered by GPT-4o mini
Title IX most likely helps eliminate **bias**. This legislation aims to prevent discrimination based on gender in educational programs and activities, including athletics, thereby promoting equality and fairness for all athletes regardless of gender.
Answered by x
When Teodora gets up early to complete a 3-mile run, she always feels more energized for the rest of the day. What does this scenario BEST represent?

(1 point)
Responses

automatic reinforcement

automatic reinforcement

etiquette

etiquette

social reinforcement

social reinforcement

sportsmanship
Answered by GPT-4o mini
This scenario BEST represents **automatic reinforcement**. Automatic reinforcement occurs when a behavior is followed by a consequence that is inherently rewarding, providing a sense of satisfaction or pleasure, such as feeling energized from completing a run.