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9. Crossing over is the exchange of genetic material between _______. different

ID: 148170 • Letter: 9

Question

9.

Crossing over is the exchange of genetic material between _______.

different regions of the same chromatid

sister chromatids of nonhomologous chromosomes

non-sister chromatids of homologous chromosomes

homologus chromosomes of different species.

10.

Down's syndrome is also called _____.

monosomy 20.

trisomoy 21.

duplication of a single gene.

haplodiploid state.

11.

Gregor Mendel was a _____.

a scientist who cloned the first animal.

a monk who first discovered the laws of genetics.

the head of the human genome project in 2001.

a scientist who discovered the structure of DNA.

12.

Yellow and green pea seed color are examples of two different ______.

alleles

phenotypes

genotypes

traits

different regions of the same chromatid

sister chromatids of nonhomologous chromosomes

non-sister chromatids of homologous chromosomes

homologus chromosomes of different species.

10.

Down's syndrome is also called _____.

monosomy 20.

trisomoy 21.

duplication of a single gene.

haplodiploid state.

11.

Gregor Mendel was a _____.

a scientist who cloned the first animal.

a monk who first discovered the laws of genetics.

the head of the human genome project in 2001.

a scientist who discovered the structure of DNA.

12.

Yellow and green pea seed color are examples of two different ______.

alleles

phenotypes

genotypes

traits

Explanation / Answer

9.Non-sister chromatids of homologous chromosomes

10.Down syndrome - TRISOMY 21

11. Gregor Mendel was a monk who first discovered the laws of genetics

12.Yellow and green peas seed color are examples of two different PHENOTYPES