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ELEN [110]
3 years ago
11

Challenge: Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a st

ructure called a centromere. At the end of cytokinesis, how many chromatids will be found in each daughter cell? Explain.
Biology
1 answer:
lora16 [44]3 years ago
7 0
The answer is 46 chromosomes.

Before mitosis, cell duplicates its DNA material so there are 46 chromosomes in duplicates and in total there are 46 x 2 = 92 sister chromatids. During mitosis, sister chromatids first join in the middle of the cell and then separate towards the opposite sides of the cell. After they separate, there are 46 sister chromatids on the one side and 46 sister chromatids on the other side. Each sister chromatid at the end of cytokinesis actually represents the chromosome of the newly formed daughter cell. 
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1. True or False - An organism may have the same common names that remain the same from area to area and language to language.
svp [43]

Answer:

1. False

2.True

3.False

4.True

5.False

6.False

7.False

8.True

9.are very numerous and diverse

10.binomial nomenclature

11.common names

12.taxon

13.The first name only

14.species in its genus

15.Mammalia

16.eukaryotes

17.Fungi

18.convergent evolution

19.Panthera

20.Bacteria

21.Binomial

22.Species

23.Eukarya

24.Chordata

25.kingdom

26.Homo sapien

Explanation:

3 0
2 years ago
HELP!!! MUCH CONFUSION LINGERING THIS QUESTION!
Fed [463]
The answer is <span>No, emotions of non-human organisms cannot be tested.

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8 0
3 years ago
Verdadero o falso mediante el genotipo podemos determinar si existen dominancia en una característica
Murljashka [212]

Answer:

Verdadero

Explanation:

Sabemos que los caracteres dependen de los genes. Y los genes pueden presentarse en forma de alelos dominantes, o alelos recesivos. La expresión de los alelos recesivos son enmascarados o escondidos por el alelo dominante. Es decir, que si ambos alelos se encuentran juntos en un heterocigota, solo el alelo dominante se expresará.

Entonces el alelo dominante expresa la característica que resulta dominante, mientras que el alelo recesivo expresa la característica recesiva.

Genotipo:

  • Homocigota dominante ----> Expresa caracter dominante (Solo el alelo dominante esta presente)
  • Heterocigota -------------------> Expresa el caracter dominante (Ambos alelos estan presentes, pero el dominante es quien se expresa)
  • Homocigota recesivo --------> Expresa el caracter recesivo (solo alelos recesivos estan presentes)

Por ejemplo, si tenemos dos fenotipos rojo y amarillo, y sabemos que el color esta codificado por un gen dialelico llamado M. También supongamos que no sabemos qué alelo expresa qué color. Teniendo solo estos datos, no podemos decir si el rojo es el color dominante o si el amarillo lo es.

Sin embargo, si tenemos los siguientes genotipos acompañando esta información:

  • MM--> Amarillo
  • Mm--> Amarillo
  • mm --> Rojo

Recién ahora podemos deducir que el caracter dominante es el amarillo.

8 0
3 years ago
I need help with 9 and 10!
slava [35]
<h2>The answer to 9 is <em><u>slippage of a block of material moving along a curved surface</u></em></h2>
5 0
3 years ago
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aleksley [76]

Answer: Ethnocentrism

Explanation:

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3 0
3 years ago
Read 2 more answers
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