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Mrac [35]
3 years ago
11

When does nondisjunction occur which affects inheritance?

Biology
2 answers:
Blizzard [7]3 years ago
8 0

Answer:

The correct answer would be meiosis.

Nondisjunction refers to the failure of separation of one or more homologous chromosome pairs or that of sister chromatids during nuclear division.

It can occur in both meiosis as well as mitosis, however, meiosis (formation of gametes) is involved in inheritance, so, the correct answer would be meiosis.

During anaphase I, nondisjunction occurs when homologous chromosome pair(s) fails to separate. In anaphase II, it occurs due to the failure of separation of sister chromatids.  

It results in the formation of gametes with abnormal chromosome number.

marshall27 [118]3 years ago
3 0
The answer is the first one, meiosis. This nondisjunction could occur whether in meiosis I or meiosis II. For example, an autosomal nondisconjunction at meiosis I can determine if the baby will be born with down syndrome. 
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Answer:

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How do mitochondria contribute to the function of the cell?​
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2 years ago
Based on these concepts, choose statements that correlate Mendel's four postulates with what is now known about genes, alleles,
Vikentia [17]

Answer:

Explanation:

Mendel four postulate is Principles of Paired Factors, Principle of Dominance, Law of Segregation which is Mendels First Law of Inheritance and Law of Independent Assortment which is Mendel’s Second Law of Inheritance.

The six possible outcome are,

3. Alleles segregate from each other during gamete formation at anaphase I gene assorts independent of each other during gametes formation.

4. Some genes have dominant and recessive alleles. Allele of a gene can either be dominant or recessive in its form

7. Unit factors occur in pairs , allele of a gene occur in pair

Dominant alleles can become codominant alleles during mitosis, when two allele both finds expression in the phenotype of an organism they are codominant

8. One gene pair separates independently from other gene pairs independent assessment of gene.

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5 0
2 years ago
What is the flow of molecules in active transport?
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6 0
3 years ago
The typical male turkey has a mass of 17.5 lbs whereas the typical female turkey has a mass of 8.0 lbs. How many ounces of insec
NNADVOKAT [17]

Answer:

The answer is below

Explanation:

It have been shown that domestic  turkeys require about 13.6 grams of food per pound of body weight each day to sustain weight. A gobbler is a male turkey.

The food consumed by a male turkey that is 17.5 lbs = 13.6 grams of food per pound * 17.5 pound = 238 grams.

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The food consumed by 7 gobblers = 238 grams * 7 = 1666 grams

5 0
3 years ago
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